Am i Obsessed????????

im not that popular, but the girl im going for isnt either. ive been obsessed with quite a few girls and decided i couldnt be bothered with them because they just reject me. but recently my friends and i have decided to pick a girl we may have chances with and get to know them. i picked someone, and even though my frends decided not to do it anymore, ive been thinking about this girl. i think im becoming obsessed (although i ddnt expect it) and ive been thinking that this relationship would be amazing. but once your obsessed you imagine everything to be perfect. if i got rejected, i would get the piss taken out of me alot, although im used to that too :P i was thinking, should i try to quit while i can now or get to know her, find the flaws and benefits, and see how things go from there? if did that, how would i get to talk to her if ive got no classes with her and she doesnt have facebook? i think about her quite a bit, but if i ddnt go out with her i wouldnt depressed. once i walked into her classroom and we stared at eachother. it was kind of awkward, but it didnt bug me. weve had other mments wer we made eye contact. am i obsessed?