It's complicated.

So when my boyfriend and I broke up, he slept with someone else that he had dated for almost a month at the time. I find her to be disgusting and that's making it hard for me to want to be with him. I do love him and I'm happy most days. But once I start to think about it again, then I feel gross. I feel like he shouldn't have done that in the first place if he wanted me back so bad.