It could be nothing, or he could be trying to get information out of her. You have no right to be sad or upset because you did the same thing.
If you want to but remember, you did the same to him.
Well think about who told you. Was it your friend? And where did she hear it from. Try to find one of your boyfriend's past girlfriends and ask them if he had ever cheated on them. If he is a cheater try to find someone else. It's best to be with someone who you know isn't going to break your heart.
Buy him a massive house!
I THINK HE PROBABLY IS CHEATING ON YOU.BUT ALWAYS TRUST YOUR GUTS .
if he weren't cheating he would have told you about it try to squeeze the answer out of him, because he deffily cheated
it is better to be honest with the people you love even if it means to hurt them or yourself because if you dont you would be living a lie...
Well for starters ah you don't, the trust of the bond has been broken by him (90 % of the time) its not repairable and you won't have the same feelings towards him.
She should be told he is unfaithful, although she may refuse to believe you.
He should have told you right away cheating is cheating no matter how long the relation ship has been whether it be 4days or 4years. So dump him like tomorrows trash.
Because you were willing to tell him so, he has probably forgiven you for it. Either that or he likes you so much that he is prepared to share you, as such, if he is able to have some time with you at all.
talk to him about it. if he hasn't told you, ask him if its true hes cheating. then ask him why and how he would feel if u cheated on him. if it continues, dump him. u already gave him a chance
Go to her boyfriend and tell him that you know what he's doing and if he doesn't stop cheating her you are going to tell her! (of course he doesn't know that you already did, hehe)