Promiscuous Pasts of partner

I am 35, an educated individual and have had a string of relationships both serious and casual myself. I have fallen deeply in love a women that has had an extremey promiscuous past. I have always known about about the many sexual relationships she's had and never got into too many details and was not very preturbed about it. By her own admittance, in a recent fight, she admitted having arrays of orgies where she was either the only women with four or five guys or with another woman with the same nomber of guys. She's done everything that one sees on porn or hears about in fanatsy stories. And it was not just once or twice experimenting ...it went on for years almost every week.The details are sordid when its some one you love...anal sex, multiple oral sex activites ...well if you can imagine it she's done it.
In my mind, I've reserved those act for prostitutes and paid porn stars...I can't seem to get around the fact that she was a whore. This hurts me deeply. I cannot seem to reconcile the deep love with the deep sense of disgust. Its amlost as though she did it now. I wonder if she told me when I wasn't that involved. I would have kept her at a distance or accepted it as I did everything else, and gotten over it. I've told her that it has to end..but we work closely together which complicates things significantly. A clean break is difficult and heart wrenching.
How should I deal with all this?