Why does he always come back to me?

ok theres this guy and at the beggining of the school year he was all acting like he liked me and he was calling me baby and whatever, but then he got a girlfriend and totally left me behind.
after they broke up, he came back to me again.and we flirted.again.and he got another girlfriend.
etc.
etc.
etc.
this happened like 6 times in 5 months.
I dont know what it is bt even when he does that I seem to start liking him again???
what should I do???

He's using you as a filler. Don't be weak, find another love interest.

ohhh,, I experience that too... really it makes me angry!! ohh may... he just flirting you, saying I like you, (many things) and sometimes touch you too until you fall from him! he is just a user, he makes his self satisfied. you have to avoid him and prove to him you can live with out him... you have to be good looking always so he will feel looser... gogogogo!!!