If you are asking this question, you are probably not looking for drama. You are looking for something steadier: the truth, an end to the secrecy, or a way to stop imagining what you do not know.

Here is the short answer first: these are two different decisions, and they should not be made as one. Contacting the affair partner is usually about information or closing a door. Telling the affair partner's spouse is about changing another person's life. Both can be understandable. Neither is required in every case, and neither, on its own, proves whether the affair has ended or whether your relationship will recover.

If you are in doubt, waiting is usually safer than sending a message you cannot unsend. A pause does not mean never; it means deciding clearly, rather than in the worst hour of the worst day.

You are not vindictive just for wanting to

Wanting to contact the affair partner does not make you cruel, obsessed, or petty. After betrayal, the mind tries to fill in gaps. Who was this person? Did they know your partner was married or committed? Is the story you were told the full story? Is it really over?

That search is normal after betrayal by someone you trusted. Jennifer Freyd's Betrayal Trauma Theory describes how betrayal by a trusted person can shake a sense of safety; Sue Johnson's work on attachment injuries adds that an affair injures the bond itself, not just a rule. Wanting an answer, though, is not the same as needing to get it from the affair partner — who may have reasons to protect themselves, soften the story, or keep a door open.

Two decisions, not one

It helps to separate the questions:

1. Should I contact the affair partner? This is usually driven by a hope to check a fact, to find out whether they knew your partner was committed, or to say clearly that contact ends here.

2. Should I tell the affair partner's spouse or partner? This is not mainly about your healing. It may give another person information they would want, but it will also start a crisis in their life — one you cannot control once you have sent it.

You might send one brief message to the affair partner and not contact their spouse, or the reverse, or neither for now. Choosing who in your own life to tell is a separate question, covered in RenuuAI's article on who to tell about the affair.

Contacting the affair partner: when it can help

There are situations where a single contact makes sense to many betrayed partners:

  • You have a specific, checkable question, not a wish to "find out everything" — for example, "Did you know he was married?"
  • You suspect your partner is minimising a key fact the affair partner may confirm or correct.
  • You believe the affair partner may not know your partner is committed.
  • You want to state, once, that there is to be no further contact.

Tim Tedder's guide for the injured spouse puts this in careful terms: contact the affair partner never for retribution, sometimes for information — for example, if you suspect your spouse is lying or the affair partner may not know about your marriage — and usually not after your spouse has confessed and disconnected. His rule of thumb is blunt and useful: if in doubt, don't.

That "usually not" matters. If your partner has already given a full, consistent account, has ended contact, and is behaving transparently, a new conversation with the affair partner often adds a second version rather than a clearer truth.

When contacting the affair partner often backfires

The SurvivingInfidelity.com Betrayed Spouse FAQ names this exact question — "Should I contact the OW/OM? Should I contact the OWH/OMW?" — and shows that betrayed partners are genuinely split on it. Those who advise against contact make points worth hearing before you decide:

  • The affair partner may lie or minimise, leaving you with two conflicting stories and no way to verify either one.
  • A conversation meant to bring closure can turn into an argument or an ongoing exchange; once a channel is open, it is harder to close.
  • Contact can give the affair partner more power over your peace of mind, especially if they respond cruelly or not at all.
  • Contact to "tell them off" can leave you with a hurtful exchange you cannot undo, and, as the FAQ puts it, gives the OP too much power over you.

Shirley Glass, in Not "Just Friends", described affairs as protected by a wall around the affair and a window into the marriage. By that logic, angry, pleading, or open-ended contact risks keeping a channel open rather than closing one.

Contacting the affair partner is also not a substitute for disclosure from your own partner. Janis Abrahms Spring, in After the Affair, and Linda MacDonald, in How to Help Your Spouse Heal from Your Affair, both place responsibility for honesty and transparency on the partner who was unfaithful — not on a third person.

Similarly, AffairHealing's guidance on ongoing contact is clear that continued contact between your partner and the affair partner keeps stress alive for the betrayed partner, which is why a swift and complete cut-off is the usual recommendation. Your one-off contact, if you choose it, should point in the opposite direction: toward ending contact, not maintaining it.

Before you contact anyone, run through these checks. If any answer worries you, get qualified human support — a counsellor, a trusted adviser, or, where relevant, legal advice — before you act. This article is not legal advice.

  • Safety. Any chance of threats, harassment, or violence? Do not meet in person if you have any safety concern; written contact is easier to control and stop.
  • Work. Do you share a workplace or professional community? A message sent in anger can become a complaint or rumour, with consequences for your household too.
  • Children. Keep children out of this contact entirely.
  • Legal proceedings. If separation or divorce is possible, anything you write may be kept or forwarded. Do not put unsupported accusations in writing, and consider legal advice first.
  • Your own state. Do you have a clear purpose, or can you simply not bear another night of not knowing? The second is a reason to write the message, then wait until morning.

William Doherty's Discernment Counseling work is a useful reminder here: when a relationship is uncertain, the goal is not to force a fast, permanent decision, but to make a clearer one. The same applies to this contact.

If you do contact the affair partner, keep it brief, factual, and finished

If, after those checks, you decide to make contact, aim for one message, not a conversation:

  1. One fact, plainly stated. For example: "I am [partner's] wife/husband/partner. I am writing to let you know we are married/in a committed relationship" — or, if that is not your question, the single fact you need checked.
  2. One question, if you have one. Keep it specific and checkable. Avoid a list of questions about feelings, comparisons, or sexual detail. Those answers rarely bring peace, and they are hard to unhear.
  3. One closing line. For example: "I do not wish to be in further contact. Please do not contact me or my partner again about this."

Practical points that protect the "finished" part:

  • Prefer writing over a call or meeting. Writing lets you control your words, keeps a record, and avoids a heated exchange.
  • Tell your own partner first, or promptly afterwards, if you safely can. Secrecy about your contact creates a second secret. Kristina Coop Gordon, Douglas Snyder, and Donald Baucom's integrative model, like John and Julie Gottman's Trust Revival Method (Atone, Attune, Attach), depends on the couple rebuilding honesty together. A surprise contact, discovered later, can undo that work.
  • Keep a copy, and do not keep re-reading it. Save the message and any reply in one place, then step away. Re-reading a reply ten times will not make it truer.
  • Do not negotiate. If the affair partner replies with apologies, explanations, or accusations, you do not owe them a debate. A short reply — "Thank you, I have what I need. I will not be in further contact." — or no reply at all, is a complete ending.

Do not include threats, insults, ultimatums to their employer, demands for explicit detail, or an invitation to "just talk" about what happened between them. Each of those turns a fact-check into an ongoing relationship with the very person you are trying to step away from.

What if they lie, deny, or try to keep talking?

Plan for this before you send anything, because it is common:

  • If they deny everything: you have a denial from someone with their own reasons to deny, not a verdict. Take it back to your partner and the evidence you already have.
  • If they tell a different story: ask what is checkable — dates, whether they knew about the marriage, whether contact continued. Feelings and "who meant more" cannot be checked, and chasing them usually deepens the hurt.
  • If they try to keep talking: end it, and block if needed. Caroline Madden's work on genuine remorse makes the point: change is shown over time, in behaviour, not in one intense conversation.
  • If they do not reply: that does not mean your message was wrong. It means this route has given all it will give, and remaining questions belong back with your partner.

Telling the affair partner's spouse: a slower, heavier decision

Telling the other spouse is often motivated by fairness: "If I had not known, I would have wanted someone to tell me." That is a serious and humane reason. It is also the reason to take extra care, because you are about to deliver life-changing news to someone else, in a way you cannot control.

Tedder's guidance on this point is deliberately slow: telling the affair partner's spouse is something to think about for a while, because it will change someone else's life, and it should not be done out of a need for justice. Ask yourself, as he suggests: if you were in their situation, would you want someone to tell you?

The SurvivingInfidelity.com FAQ records a stronger forum consensus — that contacting the other spouse is a matter of fairness and of removing secrecy, since affairs thrive on secrecy and deception. That perspective deserves respect, and many betrayed partners act on it and feel at peace with that choice. But a forum consensus is not a rule for your life. Before you tell the other spouse, consider:

  • Do you know they do not know? If they already know, your message may reopen a wound they are healing.
  • What will you say? Stick to what you know first-hand. A short, factual message is kinder — and more credible — than a long, angry one.
  • How will you send it? Privately, to the person themselves — not publicly, via their employer, or via their children.
  • What do you hope happens next? If you hope their spouse will leave the affair partner or confirm your version, be honest: those outcomes are not in your control.
  • Safety concern? If anyone involved may be unsafe, do not manage that alone through a message; seek qualified professional support promptly.

If you decide to tell them, tell your own partner first if you safely can. The Affair Recovery guidance on who to tell makes the parallel point for your own circle: however you decide to proceed, make sure your spouse is aware of your choice, and be selective about who you trust with sensitive information. The affair partner's spouse is not part of your support circle — which is exactly why telling them needs its own care.

If you decide not to tell them, that does not make you complicit in the affair. You did not create the secrecy, and you are not responsible for policing someone else's marriage. "Not now" is a legitimate answer, and you may revisit it later when you are calmer and have more information.

If you decide not to contact anyone

Choosing not to contact the affair partner or their spouse can feel unfinished, especially in the early weeks. A few things can make that choice more bearable:

  • Name what you actually need. Write down the one or two questions that keep circling, then ask: can my partner answer this?
  • Ask your partner for disclosure, not detective work. Stephen Fife's forgiveness model emphasises empathy, humility, apology, and accountability in how a partner answers hard questions. Michelle Mays, in The Betrayal Bind, describes needing safety from the very person who caused the injury; that safety is rebuilt when your partner stays present for hard conversations, not when a third person confirms a detail.
  • Set a review point. "I will not contact them this month. If I still feel I need to in a month, I will revisit it." That turns an open question into a decision you can revisit.
  • Expect the urge to return. A surge after a trigger does not mean your earlier decision was wrong; it means you are having a hard day, and hard days need support, not a new message.

Esther Perel, in The State of Affairs, and Peggy Vaughan, in The Monogamy Myth, both point the same way: understanding usually comes from honest work inside your own relationship, not from one more conversation with the person outside it.

After any contact: return to no contact

Whatever you decide, the ending matters as much as the message. After a one-off contact: tell your partner what you sent and what came back; keep the record safe and stop checking for replies; and return to no contact — for your partner and for you. Willard Harley, in Surviving an Affair, argues for a sudden and complete end to contact with a former lover, and AffairHealing's guidance echoes that. A single factual message only fits that principle if it stays single. It also does not prove the affair has ended; that is shown, as MacDonald describes, through your partner's sustained honesty and transparency over time.

One manageable next step

You do not have to resolve this perfectly. Make a decision you can live with, protecting your safety, your children, and your clarity — then return to the work that rebuilds trust, which happens between you and your partner, not you and the affair partner.

If it would help to sort through this decision privately, RenuuAI is a private AI recovery coach that can help you work through one manageable next step at a time, with a personalized recovery roadmap and guided AI sessions for difficult moments. It is not therapy, and it does not decide for you whether to stay, leave, or contact anyone.

Whatever you decide, decide it slowly enough that future you will recognise the person who sent that message — or chose not to.

Sources

What no contact with the affair partner means Who to tell about an affair Handling unavoidable workplace contact What to do about trickle truth More on truth, trust, and boundaries

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