<human>: We've been dating for about 6 months, and we're throwing around the idea of moving in together this April. She's a wonderful girl, and I've never been happier. At the very start of us dating, she confessed she cheated in a past relationship. She broke up with her boyfriend the next day out of guilt. At the time, I brushed it off. Now that things are getting more serious, it's genuinely starting to bother me. She lives 2 hours away currently, and we only see each other on weekends. I only find myself worrying when she's away.

I sat her down and told her all of this, and she did a great job reassuring me. She explained that they were dating for 8 months at the time, and it was an awful relationship. It was abusive (physical & emotional), and he was an awful person. They were in a rough patch, and instead of using communication she went to a previous boyfriend for "reassurance". She went on to explain she'd never do the same thing to me, and she learned from her mistakes. I have nothing to worry about. I might ruin what is easily the best relationship I've ever had over personal insecurities. What should I do?

Give me the gist of the text in a nutshell
<bot>: Girlfriend cheated in past relationship, I can't get over it. I might ruin the best relationship I've ever had over personal insecurities.