<human>: Some background first, my girlfriend[19] and I[19] have been dating for about 9 months, we met in our first yea of college. The first year was amazing and i thought we had something going for us and so did she. But then the summer came. She doesn't live to far off campus but i on the other hand live about an hour and a half from campus. Through the summer i text her everyday and and call her every weekend to see whats up. 

I finally move into the dorms and the next day she moves in I spend the whole day trying to talk to her but I was awkward and I couldn't until i finally found out she want ed to just be friends. Me being so emotional decides to let her go and be happy but I didn't get a reason from her why she had left me.

I felt so embarrassed after that i could barely stare at her or even talk to her the next day. Sure we were still friends but I just wanted a reason why she decided what she decided because i want to be able to close that door without regretting something that I did.

The same day that I ignored her was the same night I got a answer that has been in my head since. I talked to her and ask what had happened to us during the summer. she said that it just happened.... I don't know what this means so I was wondering if r/relationships could provide anything

Here's something she sent me last night after I talked to her: [Picture](

Can you condense the text into a few key points?
<bot>: Girlfriend of 9 months says that we are better off as friends, I asked what I did to make her come to this decision and she says it just happened