AITA for not lettinng my ex introduce the woman he cheated with to our kids?

He cheated after nearly a decade of marriage — and now he’s calling her “controlling” because she doesn’t want his mistress around their children. The 29-year-old mother shared her story on social media, describing how her 31-year-old husband began an affair with a 22-year-old coworker he had known for only a few months.

What hurt most wasn’t just the betrayal. It was the promise he made — that the other woman would never be part of their children’s lives. Now that he wants to make the relationship official, she’s facing a painful choice: keep protecting his secret, or finally tell the truth.

‘AITA for not lettinng my ex introduce the woman he cheated with to our kids?’

It started with a sudden confession that left her stunned:

My husband(M31) of almost 10 years cheated on me (F29) with a girl (F22) he met at work after knowing her for about 3 months. One day out of the...

then I started finding random stuff in our car that she had been leaving. When I confronted him he said that he was interested in someone but it was physical,...

A month later, the pieces fell into place:

One month later he left home and later on I found out he had been googling "how to break up with your wife" kind of articles and a reservation for...

He had also been meeting with her before leaving and told me he had been with friends.

I thought this was a phase and while he started a "relationship" with her 2 weeks later I still welcomed him whenever he wanted and had s__ with him for...

Even then, she chose to protect him:

I also kept a secret the reason of our separation because I didn't want him to feel ashamed in front of his family but since the start I told him...

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She tried to move forward — therapy, the gym, rebuilding herself. But then he changed the terms:

I started my path towards healing, therapy, gym, the whole combo. We haven't slept together for a month now and he decided he wants to go official with her.

I told him that as discussed at first, this girl holds no moral compass to be in our kids' lives and it's a slap in my face that he wants...

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We had also agreed that I'd keep the secret of his cheating as long as he kept his promise. Now that he wants to break it I told him of...

He says that I'm trying to control his life and that's the reason why he left in the first place. I'm heartbroken because all these years he never complained and...

She later clarified:

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Edit: I don't plan on telling the kids yet (or for many years to come). I don't want to create an idea in their heads about him being a bad...

He's not a bad father either, maybe not the most involved, but he likes spending time with kids and I don't want to ruin their childhood just because I'm angry....

Edit 2: Yes, I still love him because I can't control how I feel but I'm acting with my head (because my heart can't be trusted, obviously).

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The other woman knew we were still together when they started, he had introduced me to her a couple of days before their conversations began as his wife.

Edit 3: I kept sleeping with him because I thought it was a phase and that this could be fixed as long as he didn't grow feelings for her (stupid,...

This and me not wanting his family to talk about what happened and risk the kids hearing is why I haven't said anything.

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When infidelity collides with co-parenting, emotions often spill far beyond the couple themselves. In this case, the mother’s primary concern isn’t revenge — it’s her children’s exposure to a woman she associates with betrayal. That instinct is deeply human. After a traumatic breakup, especially one involving deceit, it’s common to feel protective over every aspect of your children’s world.

However, once a couple separates, control over a former partner’s personal life becomes legally and practically limited. Family law courts in many jurisdictions allow parents to introduce new partners unless there is evidence of harm to the children. Some custody agreements include clauses delaying introductions, but those arrangements must be formalized through legal channels.

Psychologist Dr. Shirley Glass, author of Not Just Friends, once explained that after infidelity, transparency becomes crucial for rebuilding any sense of stability. Secrets, even when intended to protect, can deepen resentment over time. In situations like this, withholding the truth to preserve someone else’s reputation may prolong emotional entanglement.

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For this mother, the path forward likely involves two parallel tracks: legal consultation and emotional boundaries. A family lawyer can clarify what rights she actually has regarding introductions. At the same time, therapy can help her untangle lingering love from practical decision-making. Protecting the children doesn’t necessarily require silence — but it does require clarity, consistency, and a long-term plan that centers their wellbeing above the conflict.

Here’s what people had to say to OP:

Many commenters were furious on her behalf:

tmink0220 − Never ever protect a cheater, never. He will not keep his promise and you will be the fool for it.

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groovymama98 − Nta I'm thinking your husband doesn't have much of a moral compass either. He has lied, cheated, stolen your truth, and thrown the life you and your children...

Others urged her to expose the truth immediately:

Celestia-Messenger − I would tell his family, you need people who have your back. See a lawyer and get compensated for a__ltery and get supervised visits or visits for the...

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Darth_Sarcasm_6666 − Tell everyone, family, friends, work. Let him enjoy his f__king mess. Then divorce him and ask for full custody. Good luck!

Some pointed out the legal reality:

Ambitious-Writer-825 − Reality check, if you divorce and he stays with her, she will be meeting your kids...

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Typical_Agency8984 − You have no control over him introducing the kids to her. It’s best you tell everyone so he doesn’t spin this.

And a few didn’t hold back their criticism of her:

Mindless_Ad4498 − Lmao he definitely thinks you're a doormat for not divorcing him...

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AttorneyLarge7301 − YTA for not filing for divorce

There were even sarcastic takes:

horseradish1 − I have no input into your situating other than to say that googling "how to break up with your wife" is comedy gold.

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Low-Will7278 − You both are wierdos

This situation isn’t just about betrayal. It’s about who gets to shape the emotional landscape around two young children after a marriage collapses. She’s still wrestling with love for a man who hurt her, while trying to keep her anger from spilling into her children’s lives.

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Would you keep his secret to protect stability? Or would you finally tell the truth once he breaks his promise?

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