How do I get over him a least a little bit!?

There's a guy at my school that I really really really really like a lot. I don't know why I like him so much, but I really do. I'm really good at wandering in the hallways, pretending to have destination so I can at least see him just a little bit. I'm also really good at wandering into the classroom that he's in so I can see him. I love when he gives me hugs in the hallway, but he has a really weird way of showing me he cares about me. I'm obsessed with looking at his facebook page, that sounds really stalkerish, but whatever. His most recent facebook status says that he's going to Flordia this week. For what reason, I do not know. I'm going to miss him, but I want to sounds too cligy to him or anything. I want to tell him I'm going to miss him, but I can't. He's also really "into" this girl from another school. They're married on facebook, and I've got to admit, I'm rather jelaous. I know he likes me, he's told me a million times before, but sometimes I just don't feel that important. Some days, he'll give me all the hugs in the world, and then others, he'll blow me off. It's pretty rediculious, as you can imagine, but I refuse to give up on him. I could be dating him right now, but my dad and my step mom don't like him. Should I not date him because of that? Or should I date him because I know him better, and hopefully they'll understand that he's not the person they think they are. I'm totally obsessed, it's a little rediculious!