Found out a supervisor where I work has a wife, a fiancé, and a girlfriend...AND messes around with girls at work. Fortune 500 company BTW.

If you aren't friend with whoever he's seeing and he doesn't harrass or sexually assault any of them, I don't see the problem.

He might be polygamous or not be happy with his current relationship so he might be expanding his horizons (at probably the expense of his partner but if you don't love someone and you leave him/her for someone else there is really nothing to be ashamed about).

I know of many people who aren't happy inside their relationship and want to start dating before they end it because they are afraid of the life as a single person.

So in the end my suggestion is just ignore him, if he's just cheating it's his problem and if you aren't friend with his wife it's not like you have a reason to tell on him. Of course if you actually HATE him you could do it, so in the end it's up to you!

/r/offmychest Thread