<human>: Our relationship is great otherwise. We've been together since we were 16, we're going to move in together, we've already lived together for a year at my house (she left for unrelated reasons), we've raised pets together etc.

This occurred over a year ago, from october-december 2013. I still get extremely anxious about it. It completely changed my perception of her as a person. I've come close to breaking up with her multiple times over this, always eventually realizing it's a stupid reason to end an otherwise great relationship, but I can't seem to come to terms with it.

I've of course talked to her so many times about it, she says she was just depressed, that doesn't help me at all. She says I'm hanging it over her head and she's not wrong, although I never attack her with it, but I want it to stop hanging over MY head.

I am looking for any good reason to make this "ok," any logical explanation of why I should be fine with it. I consider myself a feminist but all those precepts about women being free to choose their partners aren't helping me make sense of this.

Summarize the given text in a few sentences.
<bot>: Girlfriend had unprotected sex with 3 guys in the 3 months we were broken up, I can't seem to get over it