How to pick the better guy out of 2?

hi i am ami , oky me and my boyfriend have been dating for around a year but we just cant stay together and he cheated on me like 6 times! but he always says that was in the begining and all this stuff... but i am moving to courpus and i am never going to see him and that is what happend when he cheated i was on vacation!! i was pissed but he says he loves me and all this stuff and oky on the other hand there is this other guy he says he realy wants to be with me:) and he is realy sweet and never asks me for stuff under my cloths like yeah everso often but i am fine with that... but my boyfriennd its like that is all he cares about but this guy he is allways telling me i am beautiful and he is sooo sweet and he says that he want to get married andd like just idk i cant get enoph of him !!! but my boyfriend i just dont have the guts to break up with him:<( what do i do?