do you think he likes me? or does he think of me as just a friend?

So, there's this guy I like, but the thing is, I dated him last year. But now, we've gotten pretty close again, he makes me take the bus with him to and from school, and we sit with each other in the two classes we have together ( he made me sit with him ). We flirt constantly, and he sometimes walks me to class, and he also makes me go to his locker everyday before and after school, and if i don't he'll come to mine. When he comes on msn, we'll talk for hours, most nights he sends an invitation for a video call, and they last between 4-5 hours. Also, for the last 5 or 6 weeks, every friday he asks me to the movies, and we go alone. He's not big on PDA (it took him a month of dating to even kiss me) so I can't base it on whether or not he's tried any of that stuff, although last week at an intense part of the movie, he grabbed and held my wrist/hand. It's gotten to the point where 5 people have asked me in the last week if we're dating. But my problem is, does he think we're just friends?