Just some thoughts from a random internet person: Everyone's got a past, best to work on evaluating people for who and what they are today.

But sometimes people can't get past your past. That is 100% THEIR problem, and in this situation, her issue seems batty potatoes to me.

Based on the story you tell here, quite frankly I see this whole exchange as a warning to you about her. If you don't address this and you both work on getting ok with acknowledging/accepting your pasts, you are never going to be able to build a future. You will never have a new female friend again, either, and you'll miss out on a lot of joy in life.

Heck, I'm looking at a group photo of our friends from a few years ago at a party, and there are three women I've slept with in it, one woman and two men that my wife slept with. All in the past, before we got together, and we are happy and trusting.