Two and a half years ago, my ex-husband’s infidelity shattered our marriage. Now, it seems he has also been unfaithful to his current girlfriend. I know he has lied to her about it, and I am torn about whether to inform her.
Opinions vary; some argue it’s not my place to intervene, while others insist she has a right to know what she’s getting into. I’ve heard from those who believe I should have acted sooner, but now I feel stuck in indecision.
His cheating was the final blow that led to our divorce, but the years leading up to that moment were filled with lies and struggles with addiction. He’s a master manipulator, presenting himself as kind and romantic while hiding a darker truth.
Just three months after I filed for divorce, he casually mentioned he was dating someone new while we were planning our son’s birthday party. I was still reeling from the emotional fallout, but I managed to keep it together for our child. It was shocking how quickly he moved on, but given his past, I shouldn’t have been surprised.
Fast forward two years, and he is still with this woman, whom I’ll call Emma. They are even planning to live together. Emma has young sons who see my ex as a father figure, and my son regards her as an important part of his life. She seems like a wonderful person, and I feel she deserves to know the truth about his past.
However, I also hesitate to disrupt the lives of the children involved by revealing this information. By staying silent, I feel complicit in his deception. But if I speak out, I risk causing heartbreak for everyone.
Would I want to know if I were in her shoes? Absolutely. I value honesty in relationships, and if my partner had been unfaithful early on, I would want to be informed. Yet, not everyone shares that perspective; some prefer to remain blissfully unaware of their partner’s flaws.
To clarify, I’m not guessing about his infidelity with Emma. He admitted it to me, and there’s corroborating evidence from the other woman involved. The details of how I learned this are dramatic, almost unbelievable — the husband of the woman my ex cheated with reached out to me months after our divorce, revealing that they had been involved again. When I confronted my ex, he initially lied but eventually confessed.
Now, I sit with this troubling knowledge about my ex-husband’s betrayal of Emma. She and I are connected through our shared experience of being deceived by him. It’s disheartening to know she believes he is a good man while I know differently. I dread the thought of her eventual heartache.
I wrestle with whether it would be selfish or selfless to inform her. If I tell her now, it could devastate her and the kids. But if she finds out later, the pain might be even worse. Does she deserve to know before they take the next step in their relationship, or should I allow her to live her life without my interference? Do I have the right to free myself from being his secret-keeper?
These questions haunt me day and night. I never expected to find myself grappling with these dilemmas over two years later.
As I type this, I’m still at my kitchen island, hoping that clarity will come through my words. The confusion and fear linger, and I find myself wondering, “What on earth should I do?”
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In summary, I am caught in a moral dilemma about whether to inform my ex-husband’s current girlfriend of his infidelity. The emotional weight of this decision is heavy, and it raises questions about honesty, compassion, and the impact on the families involved.

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