Most Helpful Girl
well, I can't really tell if he is interested in her or not.
but before he does take interest in her, let him notice you. maybe you should start saying hi to him too. try to be friends with him. hang out with him and talk to him, but don't act clingy.
he can't take interest in you if he doesn't know who you are. I think you need to make a move and let him get to know you before he falls for someone else. :D0THIS IS NOT RELEVANT ANYMORE