Absolutely! (discreetly)
AnswerEverything I have ever read says keep your nose out of other people's love lives. You may be wrong. He may suspect and not want to face the truth, he may have given his blessing, there are all sorts of reasons why you should not tell.If he asks outright then perhaps you should tell but not otherwise.
ANSWER:
No you don't, first of all it's not your business even if you are the wife of the man she's having an affair with. Second; you don't know the man. The wife is the wife that needs to tell, especially if there's a reason why she went to the other man. If that woman is having the affair, she night have some reason, not that I'm on that "teach your husband " a lesson. Its not that. From my own personal experience I did that also because I have so many disappointing life, always alone, always waiting, wondering if it's going to be over or it will be my turn. So before you think of going to the husband, go to the wife and ask her why, she might surprise you with explanation. Most wives who end up with another man do have reason.
Definitely yes
You should tell the other girl and both break up with your boyfriend.
Yes you should tell her that he is cheating. Because later, it will hurt her if not told.
You should tell your friend that he is cheating its best that she knows.
tell him
If you have absolute proof that your husband is cheating with this other woman then you should deal with your own problems with your husband first and yes, the other woman's husband should know. This is not an uncommon problem and most people (whether a husband cheats with another man's wife or a wife cheats with one of her friend's husbands) is very common and the victim of the cheating generally does tell the husband or wife that their spouse is cheating with their spouse.
You probably can not tell if she is cheating on you, but you can ask her and look closely at her reaction. Talking to other guys is probably innocent and nothing to get upset about.
dont tell your best thing anything. If you do you will lose that friendship forever. I would just tell the person that is cheating to dump his girlfriend so you dont have to worry about it anymore
Leave your cheating boyfriend... Seriously, put yourself in the other girl's shoes. Tell him if he really wants to be with you, he'll leave the other girl.
No, keep cheating and dont get caught.
You most definitely should tell your sister. Flirting with another person not in the relationship is cheating. He is stepping outside their relationship and that isn't fair to her.
You should tell him that you know that he's cheating on you and tell him how you feel about it. Also if he then goes hmmm... ok then just do the same back if your a bitch or if your nice then just dump them.