<human>: Can you summarize the given text in a few sentences?

I really didn't see it coming. Last week we were at prom and she wanted to move in with me. I woke her up one night saying I couldn't sleep because I felt like I don't bring excitement to her life, but she calmed me down and told me that I do and I make her happy. A day later she goes over to a friend's house while I'm at work and starts talking to her about how she wishes there was more excitement in our relationship and that she isn't happy. The next day we go buy books and get burritos and have a great morning, but when we came back to my place it seemed like something was off about her, so I asked. She said that she couldn't be sexual with me anymore because she hasn't been sexual with anyone else and doesn't want to commit to me at her age. She was conflicted between how much she loved me and her need to be free. This completely destroyed me. 
I left for work and it's all I could think about. When I got off work I told her that we really need to talk, she agreed. When we met later, she was totally calm. She told me that she wanted to just be friends. I broke down. Before I got there I thought there was a chance at resolving things, but she had made up her mind before we could talk. 
It seemed to have happened all in one day. I still can't control myself. My room was pretty much her room, so everything is a memory in there.  
I want her back so bad. I just want things to be like last week.  

In the beginning of our relationship, I was the one who had commitment issues (because of her age), but I eventually decided to go with it because she was wanting commitment.  Now I'm the one that wants commitment and she has the commitment issues. 
It seems like she has already moved on (two days later). She still considers me to be her best friend. 
I hope she goes to find out what other people are like and comes back, but I cant keep myself hoping for however long that takes. I haven't slept for two days. 

I need help
<bot>: I can't really summarize it, but I'm trying to get over a break up that was initiated in one day.