This is defiantly one of the hardest things that you will have to deal with, Just did it myself. Where I messed up was every time I drank I called him. Bad move. So 1st, if you drink, erase his #...trust me. U can write it down at home so u have it but DO NOT have it in your phone. Another thing I started doing was going out with the girls, working more, working out so that I could look hot for the other guys...blah blah blah... and if he is a loser like you say, just raise your standards. Realize that you are better than that, and you can do better than that. Live for you, be happy. It is possible. I am now proof of that.