<human>: About a year ago, a friend introduced me to his wife's friend, and we hit it off. I'm 29 now, and she's 26. We dated, things went extremely well, and things have progressed to the point where we are both extremely happy and have been considering moving in together this summer when our leases end. All in all, a very normal, healthy, mutually respectful relationship that makes us both very happy.

A few weeks ago, however, she dropped a bomb on me. She told me that when she was in college she was pretty casual about relationships. When I asked what that meant, she told me that she had probably been with about 35 guys. I was floored. I had always assumed she had a typical dating past, and that she was a nice girl. She assured me that she had completely changed after college, but I still have no idea how to process this information. I'm pretty sure that if I knew this from the start, I never would have given her a chance. Needless to say, I'm really weirded out.

This is a woman who, until two weeks ago, I could easily have seen myself marrying. She's been so incredibly great to me, but now I don't know who I'm dating. I would love to get past this and go back to feeling the way I used to, but I don't know if that's possible. I'm also afraid that if I end it over this, it'll be the biggest regret of my life. She makes me so happy and it's probably the best relationship of my life, but I'm now seeing her as damaged goods. I try to rationalize why her number isn't that crazy or out of whack, but then I snap back into it and remember that I don't know a single woman who did anything remotely like that in college. This is just foreign to me.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: 1 year relationship with a woman I could see myself marrying, she recently revealed to me the she had a promiscuous past, I'm bothered by it. Where to go from here? Need advice.