Does he like me or is he playing with my head?

There's a boy in my school who i known for almost a year now. i always thought he was cute and i think he knows that. I sent him a pic comment, and he sent me one and a message asking my sn. he always ims me and when were in school he gives me a y smile biting his lip. but (yeah there's a but =/ lol ) he has a girlfriend that's why i never tried anything with him. he told me though he hasn'tt found the right girl and loves innocent girls with green eyes. theres a party on Saturdayy and he asked me if i was going, we can take the bus together. So what do you guys think does he like me or is he just playing with my head?