爱情 problem

There's this guy @ school-he's a senior 流行的 kid. I like him. I catch him staring @ me often but looks away immediately when i see, he's done so many stuff to me which made me realize that he does like me too. But recently, he doesn't even smile @ me but most of the time i see him looking @ me from places and i'm clueless ... what is this guy really doing?