I dont see how you could really continue your friendship with her and not tell her..because if you dont tell her, at some point you'll have to cover for him or lie for him. So for me the two choices would actually be to stop hanging out with them completely, or tell her.

If you do not tell me something like that, you are NOT my friend.

I would expose him. She deserves someone loyal and respectful

If you were my friend & I was Joe's wofe:I would like you to tell me, but I would also need the proof, if he is my husband I wouldn't believe a "He said, she said" story, and if you can't show me proof, and as I would be loyal to my husband, I would have to tell him what you have said, and he will obviously deny it, would want proof that I have seen proof, because he can easily say "she is just jealous" he could probably manipulate/persuade me to think that you have been flirting with him, and so your just trying to wreck our marriage, so obviously a joint decision between me and my husband would be to cut you off. I wasn't married but this happened when I was with my ex, and that's exactly how the situation panned out, I eventually found out he was messaging other girls, and I felt like an idiot, he persuaded me to think it was my friend that was the problem, I have apologised and growled to her, 6 years later she still doesn't talk to me, and I really don't blame her.

Why tf is your husband still friends with this guy. And why is his friend comfortable enough to share this info with him?

Even if you tell her anonymously, her husband will figure out it was you. Unless he goes around telling his business to everybody. But yes, you should talk to your husband and decide together on how to tell her.

Message me I can send the stuff to her. If I were In her shoes I’d want to know. What if she gets pregnant by him? That’s another kid without a father in this world. Most men are such pigs, just why?

I’m not sure why so many people are saying you need to gather proof before telling her. That’s not your job. All that needs to be said is that her husband admitted he was having an affair to your husband. What she does with that is her own prerogative. Anything more would be getting yourself into a mess that’s not yours to get into.

Would I tell her?! Nope because my husband would beat me to it. Cheating to him is extremely vile. There would be no “I told you to stop” instead he’d end the friendship immediately. He doesn’t associate with cheaters as continuing a friendship with a pig like that reflects on his character. He’d then tell the wife right in front of her husband before he had any chance to delete the evidence.

I say you and your husband drop them. You don’t need that drama in your life. And it could start problems between you and your husband. Take a step back and make excuses. We’re busy. Not feeling well. It’s just “us” tonight. Or simply ignore them. TRUST ME!!!