<human>: Give me the gist of the text in a nutshell

We have had a very up and down relationship. We first started dating in high school, and we broke up after we went to college. Now in the second semester of my fourth year at university, we have gotten back together. It was perfect the first two months. Then we got in one argument, and the relationship has been going up and down since then.

Even when we aren't arguing, she'll say things like "Why don't you like me?" or "You're probably just going to ditch me for some other girl." At first it made me sad to hear that she would think that. I thought I must be doing something wrong. Now that I look at it, I think it's just because we had that long break. She doesn't trust that I can like her again. She's even said before that she may never be able to fully believe I like her again.

Now that I've heard it so often, it actually has become annoying. I love this girl, but it feels the relationship is broken and can't be repaired. I've been thinking about this for the past month now and have been thinking of breaking up with her for the past few days. Do you guys think I should break up with her? It really feels like there is no way I can convince her to think otherwise.
<bot>: gf constantly says I don't like her. I was concerned at first but now annoyed by it. Should I break up with her?