everytime i'm around her homecoming comes up involving me.
I agree with Almira. It sounds like she may be dropping hints, and if she is you are dropping the ball.
I am assuming that you want to be with her.
Why not be up front and say, "I'd like to go to homecoming, especially if I could take you. Would you be my date for homecoming?" Or something along those lines.
If (when) she says yes, make sure that you say positive comments about being with her.
If you get shot down, so what. At least you know and can move on.
I think she is trying to let you know she is interested. Obviously, she is too shy to ask you directly, so make your move!
Just be say "are you going with anybody?" And if she says no say "oh, maybe we could go together:)"
Why don't you just ask her? I feel like she's trying to hint at you asking her.