I need help... with a "freinds" girlfreind?

forget the girl. you cant let a girl get in the way of a friendship!! you will be sorry. plus- heellooo SHE WAS HIS GIRL FIRST. that was wrong of you. you deserve to feel awful and super guilty:/ but you gotta forget about the girl.. work on your friendship with him.. and whether or not you should TELL him what happened.. well only you can decide that.. and i think you KNOW what the right thing to do would be.. and i hope you dont make the wrong choice AGAIN(: