Honestly.. this guy sounds like a jerk. He's just not that into you. Doesn't make you any less (makes him less cause i bet you are a great person) IF he really did care and loved u, he wouldn't just leave u like that and never talk to you and go see some other stupid girl, u know?
I know your heart broken, and it sucks, cause he took advantage of you. But try not to feel sad and realize that he's a jerk. You don't need this guy. You said you've been betrayed before, so you probably should be more careful when choosing guys.. just take things slow and don't rush yourself.. you still really young and should enjoy being single.
I hope you feel better and realize that you didn't lose something good. Just remember, if he REALLY cared for and LOVED you.. he would have done NONE of things that he's done to you.. just think about it.. would you do those things to him?
Hope this helps!

Liz