Is he into me??

i dont really noe why but my instinct told me that he's not into me...he's cute....charming and im really obsessed with him....to me,he's like the coolest guy i've ever known and i really really seriously like him(well......its after half a year then i realise that i like him)well...i noe he likes another girl but that doesn't really matter....but then i start to get curious because i noe that girl doesn't like him but yet i think they are getting closer each day...i mean...their relationship of course....im so jealous.....im not trying to be egoistic or just thinking about myself....but who won't get curious right...ohh Lord...i need some guidance right now...im afraid to tell him that i like him because of some past problems...but im not asking anything from him in return...just wanna him to appreciate me and be thankful that someone actually likes him because of who he is as a person and not what he is.....someday he'll find out....but i hope the day will be a long time in the future...