<human>: Howdy,

Just wanted to talk to someone I guess. As the title says, my girlfriend left me last November, after two years of dating. It happened suddenly and out of the blue. And I still can't wrap my head around it.

We've had a fairly happy relationship for the two years that were dating. Sure, we had arguments here and there, but overall it was good. I was happy and she seemed rather happy. In fact, her dad and I were talking about us marrying sometime down the road. I even got to celebrate her sister's wedding with her, we caught the garter and the flowers that night.

Alas, two weeks after her sister's wedding she went on a camping trip with some of her college friends. When she came back, she became somewhat distant and hard to reach. Her mom and her were fighting again and she was going through finals, so I attributed it to that. But then, two weeks after she told me that was leaving me. 

She told me that it wasn't my fault and that I'd done nothing wrong. She told me that she has become complacent with me. That she had priorities that she needed to focus on like working out and losing weight, getting a job and finishing college. Finding out what she wanted to do with her life. And that she needed space for all of that.

And so she left.That was it. The short few times we came in contact to get some of my stuff back was like pulling teeth. She essentially hid from me or would bail on me. It all ended up with my stuff getting to me through someone else.

What did I do wrong? Why does it still upset me? And why is it so hard for me to go out on dates with other women(my friends thought that meeting other women would cheer me up, but alas it did not).

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: After dating for two years, my girlfriend left me out of the blue. I did not see it coming and it has racked my confidence thoroughly. Any advice?