<human>: Been with my girlfriend for just over a year now and it's been great. We've been on holiday together, celebrated her 21st and it's been the happiest year of my life. We celebrated our one year since our first date with a trip away before she flew back home for Christmas. It was amazing. We exchanged Christmas gifts, had an amazing time, talked about our plans to go interrailing in the Summer and (this will sound small but it meant the world to me) she said she would miss me so much over Christmas and even wrote me a little note telling me she loved me. It's been in my wallet since.

She came back from her Christmas break and was distant and quite cold. We still hung out but something wasn't right. She then broke up with me and says it's because my heart is in it a lot more than hers. She says I depend on her too much and she can't deal with that it isn't good for her. She has helped her sister and friends through depression and anxiety but she had a couple anxiety attacks when she was home. She says she can't deal with me and has to end it.

I pleaded for a 2 week break to see how she feels but I could tell she had already made up her mind. I am just devastated and really confused how she can change her mind so much over the 2 weeks she was home.

Then yesterday, her ex boyfriend followed me on Twitter... Never spoken to him before and now my mind is running around thinking maybe she cheated on me and feels guilty I don't know.

She would be going back home for 3 months on work placement in February and I would come see her every few weeks then in the summer we were going interrailing across Europe.

I just don't know what to do. I want her back so badly, but if I get her back, am I just prolonging the heartache for another few months? Should I just accept she doesn't love me as much as I love her and move on?

Can you condense the text into three sentences or less?
<bot>: Girlfriend of 1 year left me because my heart is in it more than hers. Had a great weekend away, then she went home for Christmas, came back and dumped me. I'm lost.