<human>: Me and my ExGF had an okay relationship up until March, we went on holiday and the first half was great, the second half we had petty arguments (most likely due to it being the most time we'd ever spent together) And a week after we got back she ended it with me.

We started trying to fix things and got back together a couple of weeks later. There was then a big issue in my family that affected my behaviour slightly, and the day we got the news I was hungover, hadn't slept and was angry. I ended up seeing her that day, and while I wasn't nasty or anything she just said I was off with her (my sister was with us the whole time and said I didn't do anything wrong).

But we were back together anyway and all the conversations we had about a future together started again and it was fine. We then had a couple of weeks of petty arguments and she ended it again, this time for good.

I am really struggling to get my mind off of her, I can't sleep, I'm gaining weight because I have no motivation to do anything. And I don't want to go out with my friends because being in a small town and her not like being 18 means she's always out. I couldn't bare to see her with another guy so I don't go out.

She won't speak to me and hasn't since we broke up, last things she said were she wants to be single and that she hopes we can be friends again one day.

I just don't understand how you can go from one week saying you want a future with someone to the next saying you want to be single?

I can't bring myself to move on and I can't get her out of my head. It's really affecting me mentally.

How can I move forward?

Provide a brief overview of the text.
<bot>: Can't get my mind off of her and it's affecting me mentally, how would I attempt to bring her back into my life?