Should I?

Hi, my name is Sarah. I'm 13 years old and I fell in love with someone online. It all started in a video game called "World of Warcraft". If you guys heard of it, you are pretty familiar with it. We met in late August and now it is January 2013. Anyways, he said something which reminded me of something so I said it to him. Then we started talking a lot and eventually we added each other. He lived in Colorado and I lived in Vegas. I was 13 and he was 16. He told me that his grandfather visits Vegas once in a while so we might get to see each other. We started flirting with each other then we exchanged our names so we can see what we look like on Facebook. He noticed that I was very beautiful and I thought he was very cute but I noticed he had a girlfriend. I was a little jealous but I reminded myself that I just met him. So he started saying all this wonderful stuff about me and I really liked it. Then it got to the point where he started to hit on me a lot. I didn't mind it though because I was use to it. I said he looked really hot and cute but I felt bad because he already had a girlfriend. He told me about his girlfriend how they were growing apart and had some close calls. Anyways, we said goodnight to each other and gave each other our phone numbers. About 3 days later I started saying my feelings for him but he didn't seem that into it. I wanted him to like me and so he did about the day after that day. We texted a lot a sent pics of each other. Then I told him if we could skype so we did. It was weird because he doesn't like video chatting. A few weeks later he told me he had sexually feelings for me and I kind of got really awkward with it because I didn't think he would go that far. I said the farthest I would go with him is just making out. I mean 3 years apart isn't a big number. About 1 month later he broke up with his girlfriend and I wasn't so sure about it. He said he had to because they were growing apart.
Later in November I asked him if he broke up with his girlfriend because of me. He replied with a maybe then I got the truth out of him. He said yes. I asked him another question saying were you going to ask me out a few days later after you broke up with her? He replied with a yes also. I kind of got my hopes up but not until December. I just lost it. I started to think he got tired of me or I was annoying because I was 13. I had a really good feeling about him but it wouldn't really work because it was long distance. So, It's January and we haven't really been texting each other lately. I think he makes excuses so he won't talk to me. He tells me I'm really down to earth and cute once in a while. He only talks to me when he's feeling down. I think he fell for another girl at his school. I want to text him but I feel like I bother and annoy him. His birthday was here and I said Happy Birthday to him. No reply. I told my friends about him and they said that I should just forget about him. I deleted his contact but I still have our messages. I know I am still young and I have life ahead of me. Please don't judge me. What should I do?