Dream of

Okay so I keep having this dream about this boy at my school. I use to hang out with this guy a lot a few years ago but then he got stuck up and started hanging out with different people. But in the dream i'm always dating him and its always just random things that were doing. But I was just wondering why I keep having these dreams about him because we only have one class together at school and I don't like him like that in fact we barley ever talk.