What should I do now? Should I tell him?

So there is this guy I have liked for over 3 years now. The problem is in the beginning I was really shy and totally messed it all up. But he kept on pursuing me, but he never makes the move I'm waiting for. I just want him to say hi to me, and tell him how he feels about me. Instead he always tries to make me jealous, or tries to get my attention. If I talk to other guys he gets jealous, he even removed me from facebook. But when he sees me again he still continues his pursuit. He never thinks about his actions, and I don't know if I want this anymore. So yesterday it was my birthday and I went to this party. I noticed him and he saw me too and I pretended not to see him. After half an hour he started dancing behind me with his best friend (who is a girl) and my cousin saw that he was looking at me the entire time if I saw this. I was standing with my back towards him, because I didn't want to look at him, and his 'trying to make me jealous'. When that didn't worked, he started to stand really close with his back pressed against mine, he did this for over 5 times. I still didn't do anything, because of the facebook move, and him not replying to an email I send telling him how I felt. Then me and my cousin started dancing a bit silly, kinda slow dancing but more tango like. He looked at me and opened his arms, like he wanted me to hug him or something. I turned my head, and then he looked mad and left. So what does he want. Today I sent him an email telling him I was sorry for not saying hi, but that he could have said hi as well. And I didn't look at him, because I wasn't sure what he wanted, and I didn't want to make a fool out of myself .He hasn't replied yet. So what should I do? I guess he's mad at me, so what should I say. I was too scared yesterday to do anything, now I regret this. I'm just afraid he will laugh. This has been going on for a long time, and he never tells me how he feels, he always makes sure I see him and then he tries to get my attention and he stares a lot in my eyes, just waiting I guess. Should I tell him I still like him?