Sarah,
I would love to believe that you are really in love. But, I'm afraid, you are probably not. At this age, you tend to rush into things. Sorry, but at this time you should be talking about your career and setting up your priorities in life. You'd head straight to emotional bankruptcy, if your love remains unrequited. Even if he give a +ve nod, you would have hard time keeping yourself away from physical relation. Make him your friend, if it's possible and give your love mature pause it needs.
From what I can conjure up from your profile is that you ain't even 18. DB Lady is right in telling that you should wait and finish your college.