Is it normal to still like this guy

I met him when I was 12 and he was 14. In middle school I was bullied quite a bit, and he was one of the few that was nice to me. When we were younger, before he had a beard I thought he looked like Anakin Skywalker in Attack of the Clones and I'm a big Star Wars fan so that was such a turn on for me.

It was a nice spring day although kind of muddy. We were sitting in a some what secluded spot next to this stream we were just talking and I remember at one point he leaned over and kissed me. Then he backed off and said he shouldn't have done that, I told him he should have a while ago. He wanted me to give him head, and being young and naive, and the strong feelings I had/have for him I would agree to what he wanted.

When I was 13-14 we agreed to be friends with benefits but soon he moved to Canada where his dad lived. I had really liked him. After he left his best friend who I'm also good friends with told me that, my crush had really liked me. I was depressed that he was gone.

A year or so later he moved back, but by the time I found out he already had a girlfriend. He would always complain to me about his girlfriends, saying he thought it would end soon. And maybe after they broke up we could go out. He said that through quite a few of his relationships and cheated on them with me a few times. But I feel like all he's ever wanted from me was sexual stuff. At the same time though, there's this connection or something that's been there since I've known him and I know he feels it too. I don't understand why after 5 years he still hasn't given me a chance to be his girlfriend. Why fill me with false hope? For me, this guy I've decided lately is like that song by Toxic by Britney. I see him for a little bit and I enjoy spending time with him so much and then after he remains in my thoughts for a long time. I can't get rid of the thought of him. When I can I'll use pot and alcohol to drown out the thoughts, but that doesn't work 100% of the time...
He has told me that my drinking was a reason he hadn't asked me out in the past. I would stop drinking for him...

It doesn't matter now though, because once again he has a girlfriend. During his current relationship he has told me he wants to be serious about me. I told him if that was true then to break up with her, since he had been complaining to me about her that same day. That was a few months ago, and they're still together.

I know I probably shouldn't think about it this way but by now I think he owes me a chance to be his girlfriend after all the hope he's given me over the years, and he knows he's hurt me in the past and said he was done hurting me. Everyday though thinking about him with someone else hurts me...

I feel like I won't be able to get over him until we've at least tried having a real relationship.

Is it wrong to think of it in terms of he 'owes' me? Is it normal to still like him after all of this?