To tell the wife

[Millenials1980]

I work in an office and I know two of my colleagues are having an affair.
It is an open secret within the office and has been going on for 2 years i think. They are both married and I’m starting to feel like i should tell their partners.
The man went away with his wife last weekend to celebrate their 10 year wedding anniversary and i know she was really looking forward to it but he made it clear that he would rather be with his mistress. He regularly tells her that he loves her more than his wife and DD (10).
My only concern is that the partners also work within my company but for different offices so I’ve been reluctant to say anything as I can only contact them through our work based Microsoft Teams but i don’t want to get in trouble for doing it during work time.

I realise i should have done this when I first found out a while ago but I’m really concerned about causing myself issues at work. Also, his wife is good friends with people within my office but none of them have mentioned anything to her yet.

So, please help me decide what to do
IABU - don’t say anything
IANBU - tell the partners and risk disciplinary at work

Don't get involved. If the wives were friends if yours then yes. As they're not then leave well alone.

Just stay out of it, and if it ever comes out, do the wife a favour and don’t let her know that you’ve known about it for years behind her back that’s so humiliating.

No, nobody will thank you for this. It doesn’t seem like you are friends with them and you aren’t responsible for their relationships so I’m not sure why you would want to involve yourself.

Nose out of other people's business.

Maybe the partners already know. How did the man make it clear he wanted to be with his mistress instead of going away with his wife.

If you can then tell them anonymously, then do that, but give them clear facts and credible information.

Something went on with my ex and a work colleague, he admitted that they kissed but I’m sure there was more, and I was completely tormented by not knowing how long or what had gone one, and if any of the other colleagues that I knew, knew about it, and I felt like they were all laughing at me! Do them a favour and do the right thing

In a work situation? No. Not your circus, not your monkeys, but it certainly will be your career. Even if you avoid a disciplinary, you'll still be forever associated with the whole thing via office gossip and that can be damaging - even when you're justified in your reasons, people just don't like snitches.

Keep out of it. The best way is to go to work, do your job, go home.

No need to get yourself embroiled in gossip, scandal or politics.

Stay out of it! Wife will find out soon enough if she doesn't know already. It would be different if these people were personal friends whom you saw socially on a regular basis but not when it is happening at work.

He is extremely indiscreet if people know so much about this affair, especially that he would rather be with mistress than go away with wife and daughter. I can't imagine anybody wanting that to get around.

Its not much of a secret if all the office and her so called friends know about it