<human>: Can you provide a brief rundown of the text in within 3 sentences?

Hey I need some  help because to be honest i'm completely lost on what to do.

So me and my GF have been dating for 14 months. But about the first few months she wasn't really sure if she liked me or not. And around 6 months of dating she cheated on me with this guy, who I thought I was pals with. Well we've had several minor breakups in the next 2 months after. She apologized and me being blinded by love forgave her. And I know she is really sorry for what she did and she blames herself from the depression I suffered for a while even though I've had been depressed for years, and we do both really love each other but, I cant forget about what she did, and whenever shes not with me I get worried that she could be cheating on me again and she tells me that if I feel that way about her, that I should just break up with her since I deserve someone better than her. I don't know what to do since we love each other very much but I keep living with that in my head.
<bot>: Gf cheated on me during the beginning of our relationship she apologized and meant it. We both love each other but I'm always worried shes cheating on me again.