My girlfriend and I were watching some romantic comedy the other day (not my idea, trust me), and the topic of sexual history came up. So we ended up talking about it, and it turns out that she's got quite a past. She's 27 and here is just some of what she told me... Her first time was when she was 17 When I asked her how many men she's had sex with she couldn't tell me but when I asked if it was over 20 (jokingly) she said oh yes, way more The first time she did anal was at the age of 18 She has had a threesome on 3 separate occasions She has kissed girls in clubs many times She was a member of fetlife for a couple of years She mentioned something about doing porn Those are the highlights but she mentioned quite a lot of other occasions and people. This is not OK. I've been with her for 3 years and I had no idea about any of this. I always had a feeling about her but I really didn't think it was like this. This is a huge shock to me and what bothers me is that I've invested 3 years of my life with someone whose values and mine most certainly do not gel. I don't really want to break up with her, but at the same time I can't imagine staying with her and being OK with this. It's going to nag away at me, I know it. I'm a firm believer that her sexual history has a lot to do with the ability to pair bond (or should I say, the inability), and I have seen enough evidence of this with my friends and their girlfriends to confirm it. I hate to think about it as 3 years is a long time, but I guess I probably will be finishing with her, at least that's how I'm feeling right now. But I just want to get people's opinions, for what it's worth.