I know you may have seen plenty of these post, but none I've read seem to fit my situation. So please help me out if you can.

Kind of a long story I'm gonna make short. (the best I can) Went to my first year of college, and started swing dancing. Figured it'd be fun and a good way to impress girls. I'm an old fashioned guy and think that chivalry is a good way to impress girls, and figured dancing would sweep them off their feet. Well it worked. I met a girl there and she stayed with me all night, which has never happened to me before. Afterwords we had study dates, it was a great time. We'd get off track of studying and just talk. We'd eat together and even had a class together (hence why we studied). I really liked her and I know she liked me, we just never said anything about it. I was too scared to say anything for fear of rejection. We danced and studied and talked for two months. I finally got the guts to say something, but she had to leave, and school ended. Summer was a long four months away from her.
She wasn't the richest of girls, her phone was kept up by phone cards and she had a junk car that couldn't go far without having troubles. She lives two hours from me. Talking to her was a rare occasion, and my truck is old also so a two hour trip would be rough on it. Then the worst happened, I could not go back to that University due to finacial reasons. I was stuck in a community college here in town. I probably won't get to go back to that university for another year or so. I only visited her once and that lasted about two hours since I was staying with a friend and she had to leave. Now I'm two hours away and haven't seen her in 6 months.
The dreams start. I was on vacation and had a dream where I ran into her on a trip. We got excited and she hugged me. I told her how much i missed her and she told me it was alright that she was moving to my town. Woke up.
On a camping trip this time, have a dream about running into her again. We hugged said how we missed each other. We spent that whole night dancing before I woke up.
This time I was home. Dream of running into her and saying we missed each other as usual. We talked about the stuff she likes to talk about and how we could figure out this distance thing. She hugged me and I woke up.
The thing is I seem to have gotten over her (at least i thought so) I don't think about her at all during the day anymore, and even have started talking to other girls. I'm trying to move on. The problem is my dreams pull my feelings right back. I wake up depressed, and missing her. The whole day after a dream I think of her. I want to move on but can't if these dreams keep happening. I've never had a girlfriend and been rejected and ignored many times, usually I get over them in a day or two and move on...no dreams or anything. But with this girl the dreams are attacking me. They are strong too, like I said I wake up depressed and in the dream I'm extremely happy. I do not like the dreams even though they make me happy, they keep me tied down. I want to know if this is any kind of sign and what could dreaming about this same girl over and over again mean? How can I stop it, if thats even possible. I just want some light shed on this so I can understand it more. I've never had dreams that have the same subject over and over and I'm confused.
Thanks for your time and help.
P.S. No comments on never having a girlfriend please (as in rude comments) It's not because I'm a dork or anything, its that I usually get friend zoned WAY too quickly. Thanks.