Does he like me??????

there's a guy that i like, and we're both pretty much rocker-types, and he always looks at me in cl when he's puttin his head on his desk becuase i sit behind him in homeroom. When someone told him that i liked him at lunch, i was sittin across from him and he started blushing and smiling and stuff and trying not to look at me..... SO we hanged out a little, and i asked him out thru a note in art cl that said "Do u wanna go out with me?" MY freind sits by me and he sits on the other side of her, and i ped it to him, and he started giggling and blushing but he wrote, "Not to be rude, but no," and he ped it back to me.......... but HE ALWAYS LOOKs at me and looks away blushing...... what shuld i do?