Need some advice.. o.o, again.. Options

[xFaith]

ok.. yeah.
I know this guy, and hes kind of someone who makes out with lot of people.. he's everything that i hate; he smokes, he is kind of a racist.. and he's not even that good looking. We danced at the school dance, like really close, and we are really flirty.

So we had a msn conversation 2 days ago.. and in the conversation i just put a kiss smiley in it.. and he said; i still want that in real life. so i said; ok come and get it (i didnt think he would really come since the weather was bad and he lives on the other side of the town). A time later, hes for my door.. seriously i was shocked.. but happy.. i guess i started liking him already.
So we talked and walked a bit, and he had to go. so i said; where were you coming for again? (i felt like slapping myself in the face after i said that).. he said; a little kiss. so i said; ok so where are you waiting for? (another slap moment; i didnt know what i did seriously :O). then he kissed me on the mouth, twice. i was nervous xD. i was kind of surprised it didnt go to "real" kissing.. (didnt tell him that ofcourse :P) he said; I cant do it, im in love with Maris (another girl,duh).. and she already forgave me twice."-while walking to his bike. I said something of okay. he got on his bike, said "but next time i want it (you know the real kiss)(what was that supposed to mean, a next time?? and then suddenly he does want to kiss?)" and there he went.

Well, the problem is; i cant stop thinking about him. i know its wrong and stupid.. but i cant help it. i dont want to be in love with him, he loves someone else REALLY BAD obviously, but she doesnt trust him anymore.. .
What do i do now? i cant "just" forget him