<human>: Could you distill the essence of the text into 1-3 sentences?

Background info: Been dating for almost 1 year. She's going to be a junior in high school, I'm going 1 state away as a college freshman. We were in love. We had just spent the past 6-7 weeks apart while we both went on our own separate family vacations and travels.

When she broke up with me, she said that it was something she had been thinking about since just before I initially left for my travels, and the duration apart since then gave her time to think about everything (we still kept in contact via email btw). One of the reasons she gave was that when she was away from me she didn't feel identified by who she was dating. I don't know what in the world that is supposed to mean. She said some other reason but I forgot unfortunately. She basically just said that the time we spent together was great and that it's nothing I did and that she has no reason for thinking the way she is, she just feels for whatever reason that we would be better off as friends.

I'm just a little confused as to what this means exactly. I'm fine with what happened (as much as that's possible, anyway), I would just like for my own curiosity to know exactly what the reasoning is. I had seen her once before a few days ago for a few hours and everything seemed absolutely normal. Both days she was holding my hand, kissing me, cuddling up to me, but then out of nowhere she just decided to drop the bomb, so it caught me off guard because up until that point she certainly didn't act like she wanted to break up, and her explanation didn't do a whole lot to help. What are your thoughts, guys/gals?
<bot>: Girlfriend told me she doesn't know why she feels the need to break up, but she does for some reason despite everything being fine really.