Getting over a girl's past?
I have been dating a girl for 3 1/2 months. The relationship has moved VERY fast as we are living together and talk about marriage , which I have always been for. The entire time has been absolutely magical, one of those "true love"/"soul mate"/"you're my other half" loves. I have never been so in love.
So several days ago she and her friend were sitting here talking and the friend brought up a time from my girlfriend's past which stunned me - About 7 years ago, she had sex with her ex-boyfriend and simultaneously gave oral sex to his cousin. The rest of the story is that they were all drunk, and it only happened for a few minutes, and never again, and she was very upset and embarrassed by the event afterwards.
I have always hated these kinds of past events. If I had known this about her when I met her I would have NEVER been with her. I know that sounds harsh or weird but it is the absolute truth. That kind of information would have tainted my thoughts about her no matter how perfect I thought she was otherwise. I literally left the room to go throw up when I heard this.
The friend is very open sexually and thought nothing of saying this to me, but I am incredibly hurt/jealous/shocked by all of this. I know the usual "Hey, it's in the past" but that isn't working with me. I've always had a tough time just knowing that my girlfriends even had sex before me, so this is especially difficult. We have talked about it several times - the closest we've come to arguing in our whole relationship- and all she can really say is "I can't do anything about it now." She is upset that I am so upset by all this.
I KNOW this girl loves me and we could be VERY happy together but right now I CAN'T STOP THINKING ABOUT IT. How do I reconcile my love for her and dismiss such a horrible event?