Honey, you're in high school, drama is a part of life. But, that doesn't mean that you have to be a drama queen! It sounds like you have a great head on your shoulders, that you are a far cry from "Confessions of a Teenage Drama Queen," and that you're just really confused about this boy. It seems like you are a smart, well-adjusted teenage girl. I can see your point about not wanting to upset the apple cart by telling him that you're interested.... but, will you ever be able to get over him if you don't?
One cool way to try and re-focus your attention on something else than this guy is to get involved with some kind of outreach program. Ever thought of Big Brother's Big Sisters?? It may sound sappy and unrealistic because you're a high school kid who's
really busy, but its a thought. Or, tutoring?? Community theatre? Helping a neighbor? Good Samaritan stuff.
Through all my myriad of relationships (ups and downs and in-betweens) that the best way to get your mind off of some hot guy is to focus on someone else - someone that needs your help... help that only you can give.
Think about it.
Don't think this helped you much in "how do I get over a crush?" but for what its worth!
Good luck, Darlin!