How do i get over this guy? please help me?

So there is this guy, a totally unique guy. he has an amazing voice, lots of jolting energy, and is so interesting and funny. basically a weirdo like me. But he is a couple years younger then me and I am about to graduate from that school. I am pretty sure he doesn't like me because he keeps saying I love you like a sister and rejecting my little hints. He always talks about the girls he likes and from what he tells me about his type I am so not his type.Even though he is kinda flirty (he is with all his girl friends though its ridiculous) and said he is "Jealous of my beauty" after I said I am jealous of his youth (no idea what that means). So how can I just get over him? I mean I see him every day so its hard, but after I graduate I don't wanna keep thinking about him either. it would be easier if he wasn't so unique and "perfect for me". I know I can get over it I just need help. I definetely am kind of rude to him because its hard when I know he doesn't like me back. But I am scared if I keep that up I will lose him as a friend. I go to a small school so I say him everywhere ahhh, this is hard for me because this is the first time I liked someone since a really bad long relationship.