No that's a bad idea. Is either your jealous of seeing him with that girl or he wants to be with you and cheats on her. Don't wait for the guy. Chances are hell hurt you just like he hurt his relationship. Be with someone that really cares about you not taking someone's boyfriend. Your being easy and disrespectful.
Wait? What if they don't break up? Find a guy who isn't already attached.
No I wouldn't wait, he is w. Her find your own guy
what are we in high school?