Hi Yaz, i no there are heaps of people giving you advice on this post, but seeing as I was/am in an extremely similar position to you, I can't resist giving you my sympathy.
Obviously we are very like minded; I'm sure by now you are well aware that some guys (and girls) dont seem to have a problem with our circumstances, even though like us, they remained virgins, and our partners were far from it. I wish, as I'm sure you do, that I also JUST DIDNT CARE!!! I feel bad for my fiance, knowing that she knows that i get so cut up about it!
The difference in our circumstances now is that my fiance and i have now been together for 21 months. We are getting married in feb. The only things that have really helped me, are understanding her past more fully, knowing that she would do anything to undo what she has done, and most of all, time. Each day that goes past puts a greater distance between what happened, and the memory fades alittle more.
You misguided people who think that it is Yaz's and my problem, have no idea how our (Yaz's and others like us) minds work. We get cut up about our girls' previous activities because we LOVE them. We want them for ourselves! Sounds selfish? Yes but it is a justified kind of selfishness, in that it is what God intended! I also thought i would only marry a virgin.It is not an easy thing to give up, for me at least. It is only the size of my love for my girl that can get me over the pain of her past. But it still hurts! And of course it should! People on this forum are quite plainly understating the damage that sex with multiple partners causes, by saying the eventual husband should get over it!!! Something as serious as this, is going to cause serious pain!
Obviously if you are one of those people who can (and lucky for you if you are) just think, "o well, the past is the past, and she wasnt with me at the time, and she wasnt saved etc etc" and leave it at that, then the act of sex does not have quite the same level of importance, or significance, as it does to me and Yaz. And that is pretty unchangeable, at least in my case.
For me, 21 months on, knowing that for the past 21months im the only one she has been with, the pain has subsided substantially. But it will always have a lingering affect. God knows i have forgiven her! But forgiveness doesnt erase the memory, and it is memory that causes the pain.
(p.s. finding out more about her past is not neccessarily a bad thing, as many people seem to imply. The amount of things you may well find out that DID NOT happen does have a very comforting effect, especially, if you're like what i was like, you are often thinking "what if?" or "has she?" etc)