So torn. don't know

[Jiveturkey]

Ok so I've been dating my current girlfriend for 7 months now. We hit some rocky spots a couple months ago when because I'm essentially roomates with her rebound from last October. I had a really hard time coping with what happened between the 2 of them especially since I live with him 6 months out of the year. I think I've finally dealt with that enough to finally get over it but on top of that I've found out that almost every guy she's introduced me to is her ex. I knew that one of them had dated her for 3 months or so and 2 others had dated here briefly in highschool, but last night i just blew up when I found out that about 3 years ago she had a semi-threesome (she was just involved with the girl) and then "dated" this other guy we hang out with for about a month or 2. I don't know what to do. I want to leave the past in the past but how am I supposed to do that when it's not in the past. It's like she hangs out with every guy she ever dated. So that makes 2 that she dated in HS (before she lost her virginity) 2 she dated after, and I have suspiscions of 2 other guys that she's friends with were once involved with her, but told her I didn't want to know. Oh and on top of that there's the mutual friend we met through that had fooled around with her on one occasion before we met. So that makes at least 5 ex's that she still hangs around and her rebound that I live with half the year. This **** is driving me crazy. She insists that it's not a big deal, that it was just bound that they would all end up dating one another at one point in time since it's mostly a group of them that's been good friends since high school. I've never met a girl who kept so many connections with her ex's. If it wasn't for all this baggage I could see myslef marrying this girl, she is amazing in every way but I don't know if I can have a girlfriend who still has ties with almost everyone she's dated. Am I crazy or what? Should I ask her to break ties with these guys? I just don't know how I'm supposed to let the past go when it's literally looking me in the face on a weekly/daily basis. I'm seriously thinking about ending it over this, there's just so much baggage/skeletons. It doesn't help that she is my first girlfirend so this is teh first time I've had to deal with any of these feelings. She knows how I feel and is completely in love with me but I don't think she is going to cut ties with her ex's seeing as there her only good friends, she has pretty much left the ball in my court and said she would understand if I couldn't deal with it. Any advice is appreciated.