How to support someone who was cheated on

Betrayal lands as a shock, even when part of them suspected something. The person they trusted most has done something that cannot be undone, and the ground moves under them. In the first days you may see them swing between fury and numbness, between wanting every detail and wanting to think about anything else. Both are normal, and neither needs fixing by you.

Many people describe a strange double life inside their own head. One hour they are certain they will leave, the next they are certain they will stay, and the hour after that they cannot think at all. They may replay small moments, a late night, a changed password, hunting for the point where they should have known. That searching is exhausting and it rarely brings peace.

They may also feel ashamed, as though being cheated on says something about them. They might avoid telling family, or ask you to keep it quiet. Practical worries pile on top: where they would live, money, the children, what people will say.

Whatever they decide, the decision is theirs, and it may change several times before it settles. Your part is not to push them towards leaving or staying. It is to be a steady person they can say anything to.

Start with the plain truth, said simply: “I'm so sorry. That's a horrible thing to happen to you.” Then stop talking. Being believed matters more than being advised. If they cry, let them. If they say the same thing for the fifth time, listen the fifth time.

Ask questions that hand them the wheel: “Do you want to talk about it, or would you rather be distracted?” “What's the hardest part today?” “Do you want my thoughts, or do you just need to say it out loud?” Those give them some control at a time when they have very little.

Keep the blame in the right place: “This isn't your fault. You didn't make someone lie to you.” If they are blaming themselves for not noticing sooner, or for staying, you can say, “You were trusting a person you should have been able to trust.”

Check in after the first fortnight, when most people have gone quiet. A short message counts: “Thinking of you. No need to reply.” And when they ask the big question, whether to stay or go, you can say, “I don't know. But I'm here while you work it out.”

Skip the story of someone else who went through the same thing and what they did about it. Comparisons, even kind ones, make a person feel like a case rather than a friend.

Don't say “I never liked them” or “I always thought something was off.” That puts you at the centre and invites them to defend a person they may still love. Don't ask for details they haven't offered, and don't repeat what they do tell you. If they ask you to keep it private, keep it private.

Avoid advice dressed up as certainty: “You should leave”, or “You should forgive and move on.” You do not know what their life looks like from inside, and a decision made to please you will not hold. “At least you found out” is not comfort, however kindly meant. If they ask what you would do, you can say, “I honestly don't know. What feels possible today?”

Some topics belong elsewhere. If the conversation turns to money, legal arrangements or their health, say plainly that a qualified professional is the right person for that part, and offer to help them find one.

Offer specific things rather than “let me know if you need anything.” “I'm bringing dinner on Thursday.” “Can I pick the children up on Tuesday?” “I'll sit with you while you make that phone call.” Small and concrete beats open-ended every time.

Help with the ordinary scaffolding. A lift somewhere, a spare room for a night, taking on a task they cannot face, remembering a hard date before it arrives. If they are not eating much, put food in front of them rather than asking whether they have eaten.

Encourage them to have more than one place to put this down. You cannot be their only support, and it is kinder to both of you if they are not leaning on one person for everything. SupportMeet is a free peer support network where people write what they are going through and join circles of people living the same situation, with weekly online gatherings. There is a circle for infidelity and betrayal in Spanish and Portuguese, alongside country circles, and local circles open once five people nearby join. If they would rather read than post at first, that counts too.

Say it out loud when you notice something good: “You got through today. You ate something. You laughed.” Progress here is measured in hours, not weeks.

Supporting someone through betrayal is heavy, and you are allowed to find it so. You may have your own opinions about the person who cheated, or your own history that this stirs up. Notice it, and don't hand it to them to carry.

Set limits you can actually keep. “I can talk tonight for an hour, then I need to sleep.” That is not coldness. It is what makes you available next week. If you feel out of your depth, say so, and help them find someone better placed for that conversation.

Find your own outlet, someone you can talk to, so your worry has somewhere to go. And if you are inside this couple too, a partner, a parent, a sibling, you may need support of your own rather than only giving it.