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

I run around and jump from chick to chick (sexually, not actual sex thou) and I haven't had a serious relationship since April, I'm starting to want one again with the same girl considering I know we both are into each other, but I don't know how to approach her about it.

I have trust issues with her sometimes. She's said that I did nothing wrong to make her want to break up with me and I just don't believe her. I want round 2 to be able to prove that I can be good boyfriend. 

The only problem is most girls that go to my school know about me. I'm not a bad person, or an ugly one (so I've been told) but I have a very bad habit of cheating on a girl if we get in a fight. Granted I didn't cheat on her, and we fought a few times. But I feel like my trust is going to have to be earned back over time but I want her back soon is the problem.
<bot>: I want to get back with ex, we feel the same, but I don't know if she'll want to, or even if she trusts me