Walking in on my friends cheating on their partners - WWYD?

[Catra]

Friend A has been with her partner for over a decade - they're not married and have no DC together. She's spoken to me at length about feeling unfulfilled - her partner takes her for granted and puts her down a lot, but she has such low self-esteem that she can't muster the strength to leave.

Friend B has been with his wife for a similar length of time. They have 1 young DC and I thought they were happy, even though outwardly they seem like chalk and cheese - he's loud, extrovert and over the top, whereas she is quiet, down to earth, and far more of a homely.

At another friend's recent wedding, I walked into a side room and found A & B kissing, with B's hand up A's skirt. I was so shocked that I walked straight out again and didn't say a word.

Now A is carrying on like nothing happened and B is actively avoiding me. The drinks had been flowing and I'm inclined to think it was a one-off rather than an ongoing affair, although I can't be sure.

However, I feel so bad for B's wife. She's a lovely person who would be devasted if she knew B had betrayed her. If it was me, I'd want to know if my DH had cheated and part of me feels I should tell her, but I'm closer to A than either B and B's wife, and telling the truth would feel like betraying that friendship.

WWYD in my situation?

Tell them they need to let their partners know, or you’ll tell them as you don’t want to be part of their deceit. ‘A’ is acting like nothing has happened as she assumes that your friendship means you will essentially overlook it, and become part of the deceit. Friends don’t put you in such a position.

I wouldn’t want to stay in contact with a or b anyway so I would tell b’s wife.

I don’t condone it, but I’m not surprised by A’s behaviour, given her low self-esteem, insecurities and dreadful relationship. B, on the other hand, has blindsided me. He has a big ego and needs to be centre of attention but his wife grounded him and I thought he had too much integrity and way too much to lose to be that disrespectful. Now, however, it makes me wonder whether he has form for this

You seem to have too much sympathy for friend A here as opposed to B. I don't know why you would want to stay friends with friend A - it might be your H next time. How would you like that ?

I wouldn't say anything. None of them really want to know and you'll come off the worst.
You're very hypocritical, judging the man more harshly than the woman. They're both cheats. And it's easier for the woman to leave without having to divorce and having no children, than it is for the man leaving a young child.

Out of interest- if those saying stay out of it, were being cheated on- would you want a friend to tell you, or would your answer be the same? Keep out and keep you in the dark?

Someone caught my wife cheating with her husband. She told her "You tell him, or I will." So my wife confessed to me. I will always be grateful to that person.

We are divorced now, and I'm happy!

What does your DH think - he knows the people

Also what kind of a hand up skirt scenario was it? A drunken arse touch or the much worse alternative?

I would speak to A and find out if it was a one off, drunken thing. If it was I would stay out of it.