You did not choose this arrangement. Your former partner is now with the person they had an affair with, and you still have to share school runs, handovers, medical appointments, and holidays with that reality in the background. It is understandable to feel grief, anger, and a sharp sense of unfairness — and also to want your children to be spared the worst of it.
Here is the direct answer: you do not have to be friends with your ex, and you do not have to pretend you are fine with the new relationship. What your children need from you is something narrower and more achievable. They need handovers and events that are calm, brief, and about them. They need to be free to love both parents without carrying adult history between homes. And they need you to have somewhere else — with adults, not with them — to put the grief and anger that this situation still stirs up.
It helps to separate three things that often get tangled together: the parenting relationship with your ex, the presence of the affair partner in your children's lives, and your own recovery.
Separate the three jobs
First, the parenting relationship. This is now a working relationship, not a romantic one, and it can be businesslike without being hostile. You are coordinating schedules, school, health, and safety — not rebuilding trust in the way a couple might after an affair.
Second, the affair partner's presence. Your children may spend time with this person in the other home or at events. That can hurt and raise real questions about timing and introductions, but your influence over the other household is limited, and trying to control it through your children usually backfires.
Third, your own grief and anger. Betrayal by a trusted person can shake a sense of safety in a lasting way, which is why Jennifer J. Freyd's Betrayal Trauma Theory remains a useful frame: harm from someone you depended on is not the same as an ordinary disappointment. Your feelings deserve a place. That place is not a handover, a school gate, or your child's bedroom at bedtime.
Keeping these jobs separate does not make the pain go away. It stops the pain being the agenda for every exchange.
Make communication short, written, and child-focused
When every message from your ex can reopen the wound, reducing contact is not coldness. It is protection — for you and for your children.
A businesslike default works well for many separated parents:
- Keep messages short, factual, and about the child: what, when, where, and what is needed.
- Put logistics in writing, by text, email, or a co-parenting app. Writing creates a record and keeps difficult conversations out of handovers.
- Answer the parenting question, not the history behind it. "Pickup is 5 p.m. at school on Friday. She has soccer at 9 a.m. on Saturday" is complete.
- If a message is about the relationship rather than the children, reply only to the child-related part, or wait until you can reply calmly.
Peaceful Closure makes the same practical point: logistics in writing reduce the chances of an inflammatory in-person exchange, and brief, warm, businesslike transitions protect children from adult tension.
Before you say anything about your ex to your children, or in their hearing, ask: does this serve my child, or does it serve my need to be understood right now? If it is the second, save it for an adult — a friend, a support group, or a private session.
This is also where boundaries, in the sense Vicki Tidwell Palmer describes in Moving Beyond Betrayal: The 5-Step Boundary Solution for Partners of Sex Addicts, matter in everyday life. A boundary here is not a punishment for your ex. It is a clear rule for yourself: I will not discuss adult history at handovers, I will not use our child as a messenger, and I will not check up on the other household through our child.
Calm handovers: a routine, not a reunion
Handovers are often the hardest moment of the week. They are public, brief, and loaded. Children watch them closely — not to judge whether their parents like each other, but to check whether they are safe and whether they will be pulled into something.
A calm handover routine can help:
- Agree the details in advance: time, place, who brings what, and any medication, homework, or kit.
- Keep it short: a friendly greeting to your child, a brief factual handover if needed, and a clear goodbye.
- Do not raise grievances, renegotiate the schedule, or discuss the new relationship at handover. Put those in writing later.
- If meeting face to face is too charged, use a neutral place — school, an activity, or a public place.
- Give your child permission to enjoy the other home: "Have a good weekend. I love you. I'll see you Sunday."
If you feel flooded at handover, it is not a failure of character. Steven Stosny, in Living and Loving After Betrayal, emphasises personal recovery, emotional regulation, and self-compassion regardless of whether a relationship survives. That work happens before and after handovers, not by forcing yourself to feel calm on demand in the car park.
When a handover goes badly, repair matters more than perfection. Later you can say: "That was tense earlier. That was between the adults, and it is not yours to fix."
School, medical, and activity events: be present without performing closeness
School plays, parents' evenings, matches, and medical appointments are places where both households may be present. You do not have to sit together, arrive together, or present a united front. You do have to avoid turning your child's event into a test of loyalty.
A few ground rules make these events easier:
- Focus on your child. Sit where you can see them, greet them warmly, and let the event be about their performance, result, or appointment.
- Be civil in your child's presence, even if you are distant. A brief, polite acknowledgement — "Hello" — is enough. You do not owe warmth, conversation, or approval of the new relationship.
- Do not compete for your child's attention in front of others, and do not comment on who else is there within your child's hearing.
- For school and medical matters, share essential information through your agreed written channel. If you disagree, discuss it privately or through a parenting agreement or legal advice — not at the school gate.
- If both households attending the same event is too difficult, consider alternating attendance for smaller events.
Your child does not need you to enjoy seeing your ex with a new partner. They need their events not to become adult battlegrounds.
The affair partner in your children's lives: what you can and cannot control
This is often the most painful part, and the part where clear thinking matters most. It helps to be honest about the limits.
What you generally cannot control is who your ex introduces, dates, or lives with, or how that person behaves in the other home, unless a parenting agreement says otherwise or there is a safety concern. Trying to control that through your children — by asking them to report back or warning them against liking the new partner — puts them in the middle, even when your intentions are protective.
What you can control is what happens in your home, what you say, and what you ask of your ex in writing: a gradual introduction, age-appropriate information, no adult details about the affair, and no expectation that children call a new partner "Mum" or "Dad" unless the child chooses to.
Shulman notes a distinction worth keeping: a breach of trust with you is not the same as the child's relationship with that parent. You can hold both truths at once — that what happened was a serious betrayal, and that your child still needs a stable relationship with their other parent. Shirley P. Glass, in Not "Just Friends", likewise explores how secrecy and boundary violations damage trust, without suggesting that children should be recruited to police adult boundaries.
What should you say to your children about the affair partner? Keep it neutral, brief, and focused on their experience, not on adult history. For example:
- "Your dad has a partner. Her name is [name]. You will see her when you are at his house sometimes."
- "You do not have to call her anything you do not want to. You can decide what feels comfortable."
- "If something worries you at Dad's house, you can tell me, and we will work out what to do. You do not have to keep secrets for adults, and you do not have to report back to me."
That last point matters. There is a difference between a child freely telling you about their weekend and a child being asked to gather information. Asking "Did you have fun?" is different from asking "Was she there? What did she say about me? Did Dad mention me?" The first invites your child to share. The second makes them an informant, and children feel that difference even when the questions sound casual.
Auré describes this well: children are most harmed not simply by knowing that their parents separated, but by being pulled into the middle — through disparaging comments, requests for information, being handed the role of go-between, or being made the audience for a parent's distress. Avoiding those patterns is a practical, daily choice, not a requirement to feel neutral about what happened.
If your child already knows about the affair, you do not need to re-litigate it. Say, in age-appropriate language, that it was not their fault, that both parents love them, and that adult problems are for adults to sort out. Janis Abrahms Spring, in After the Affair: Healing the Pain and Rebuilding Trust When a Partner Has Been Unfaithful, draws a helpful line between genuine accountability and premature reconciliation; the same line applies here.
When cooperative co-parenting is not workable: parallel parenting
Not every separated couple can co-parent cooperatively, especially in the early period after infidelity. If every exchange escalates, if communication is used to reopen old wounds, or if joint decisions become a new battleground, parallel parenting may be the more child-focused option.
Parallel parenting means each parent runs their own household independently and coordinates only what must be coordinated — usually in writing, and usually about schedules, school, health, and safety. There are fewer joint decisions, less direct contact, and different rules in each home. That is not a failure. For many families it is the arrangement that keeps children out of the middle while emotions are still raw.
Peaceful Closure describes parallel parenting as a realistic adaptation, not a failed version of co-parenting, and notes that some parents move toward more collaboration over time while others maintain a parallel structure indefinitely. Either outcome can work if both households are stable and children are not asked to carry messages or loyalty tests between them.
If you are considering parallel parenting, consider putting practical arrangements in a parenting agreement and getting independent legal advice. This article does not give legal advice or prescribe a custody outcome. A written agreement can settle pickup times and places, holidays, schedule changes, and school and medical decisions.
What the unfaithful parent can do that actually helps
This section is written for the parent who had the affair and is now with that person, and for the betrayed parent who wonders what reasonable help would look like.
What helps is not asking the other parent to embrace the new relationship, approve of it, or be friends with the affair partner. That is not a parenting requirement, and pressing for it usually creates more conflict, not less.
What does help:
- Take full responsibility for the affair without asking your children, or your ex, to minimise it. Linda J. MacDonald, in How to Help Your Spouse Heal from Your Affair, emphasises complete responsibility, consistent honesty, empathy, and patience.
- Keep adult history out of children's ears. Do not explain the marriage, justify the affair, or correct the record through your children.
- Do not use children as messengers, spies, or go-betweens. If you need to tell your ex something, tell them directly and in writing.
- Introduce a new partner gradually, and tell the other parent in advance if you have agreed to do so. Give children time to form their own view, without pressure to like, love, or rename the new adult.
- Be consistent: turn up on time, handle the ordinary half of parenting, and absorb a cold handover without escalating it. John M. Gottman and Julie Schwartz Gottman, in their Trust Revival Method of Atone, Attune, and Attach, place responsibility and emotional understanding before rebuilding closeness.
- Accept that the other parent may never be warm toward your new partner. Civility in children's presence is a reasonable standard. Friendship is not.
Esther Perel, in The State of Affairs: Rethinking Infidelity, explores the meaning people attach to affairs without excusing betrayal. That distinction is useful here too: understanding why an affair happened does not require the betrayed parent, or the children, to endorse the new relationship.
A clear safety boundary
This article is not a plan for abuse, coercion, threats, or immediate danger. If there is a risk to you or your children, do not try to manage it with a calmer handover routine. Seek qualified human support promptly, and get independent advice about safety and parenting arrangements. If you are in immediate danger, contact local emergency services.
If a child is being harmed or exposed to unsafe behaviour in either home, that is not a co-parenting style issue. It needs prompt, qualified, human help.
One manageable next step
Choose one change that makes the next handover or event a little safer for your child:
- Move logistics to one written channel and stop discussing schedules face to face.
- Agree a two-sentence handover script and use it even when you feel anything but calm.
- Stop one loyalty-testing question you have been asking, and replace it with "Did you have fun?" — and leave it there.
- Tell a trusted adult, not your child, what this week has cost you.
Michelle Mays, in The Betrayal Bind: How to Heal When the Person You Love the Most Hurts You the Worst, describes needing security from the person who caused the injury — a bind that can reappear at every handover. Debi Silber, in Trust Again and her Post Betrayal Transformation framework, similarly frames recovery as rebuilding confidence, identity, and agency, not pretending the betrayal did not happen.
If it would help to work through your next step privately, RenuuAI is a private AI affair recovery coach, not therapy, that offers a personalized recovery roadmap, guided AI sessions, and on-demand sessions for questions and difficult moments. It does not decide stay, leave, forgive, or reconcile outcomes, and it does not replace qualified human support.
You cannot control what your ex does. You can control whether your children are asked to carry that story.
Sources
- Shirley P. Glass — Not "Just Friends"
- Janis Abrahms Spring — After the Affair: Healing the Pain and Rebuilding Trust When a Partner Has Been Unfaithful
- John M. Gottman and Julie Schwartz Gottman — Trust Revival Method (Atone, Attune, Attach)
- Linda J. MacDonald — How to Help Your Spouse Heal from Your Affair
- Steven Stosny — Living and Loving After Betrayal
- Michelle Mays — The Betrayal Bind: How to Heal When the Person You Love the Most Hurts You the Worst
- Jennifer J. Freyd — Betrayal Trauma Theory
- Vicki Tidwell Palmer — Moving Beyond Betrayal: The 5-Step Boundary Solution for Partners of Sex Addicts
- Debi Silber — Trust Again and Post Betrayal Transformation framework
- Esther Perel — The State of Affairs: Rethinking Infidelity
- Peaceful Closure — "Co-Parenting After Infidelity: Keeping Your Children Out of It" — https://www.peacefulclosure.com/articles/co-parenting-after-infidelity.html
- Shulman — "After The Affair: How to Co-Parent With Someone Who Cheated" (published September 12, 2019; updated August 10, 2023) — https://shulman.ca/blog/adultery/after-the-affair-co-parenting-with-someone-who-cheated
- Auré — "Co-Parenting After Infidelity: What Children Actually Need" — https://www.myaure.life/blog/co-parenting-after-infidelity