Replying to Ok guys i got a problem

ok so. first off i'm 18.

ok so i went off to school this year. 5 or 6 hours from my gf. we have only been dating a bit more than a month and now i dont know what to do. when i'm with her we have an amazng time. i really do like her and get along with her really well. but i'm at school now and i dont know what to do. :s

i'm at school now and thanks to my school and my programme. there are ALOT of girls. i have made some good friends and been chillin and dancin. and in that way i cant decide what to do :S

also i have been talking to my gf and one of her best friends and my being away is really rough on her.

so another reason i'm lost is that i know most relationships dont last so if thats the case i would miss out on some of really nice girls with similar interests as me here for no reason in the end.

i really like this girl and hate to see her hurting and would hate to hurt her more but well i just dont know what to do.

sparksnotes:
at school, gf 5 hours away at home. dont want to hurt her and cant decide what to do :S
more details in story.

thanks for any ideas or input

on the plus side she's cool with me dancin.. just no more than that(which is totally reasonable).