Not Sure About Spouses Past

When I (age 23)was dating my now wife (age 20) we talked a lot like most couples. One evening during conversation I told her how sweet and innocent she was. She became angry at me and told me she was anything but sweet and innocent. This of course opened the conversation of past partners I was still a virgin and had no deep relationships with anyone until she came along. She informed me she had slept with over 90 guys and had almost gotten married. It made little sense because in 6 months she never allowed me to second base and she seemed very inexperienced about any thing sexual.
Six months before we got married we started having intercourse it was painful for her the first few times (strange for 90 plus guy girl). About 3 months before we were to marry she told me she had not told the truth and had only been with three guys and had never had an actual boyfriend. She told me about her first time in college it all made more sense. While she was living the story she would tell me her ex was trying to win her back (he lived 90 miles away). After she came clean all that went away and I wanted to just start our life clean and fresh.
Every now and then she tells me what a slut she was in college and how she hates herself but when I try to get her to open up she tells me it is in the past and it is none of my business. After over twenty five years of marriage one of these I am such a slut things started up during a conversation she kept talking about dirty Chris and just asked her if it was someone I knew and she told me no and who it was. Well this guy was killed when my wife was young so this goes back to when she was in middle school. So then the story before we were married seems to be not the truth.
When were first sexually together we got louse crabs about two months after we started having sex. I always thought that her roommate and her gross boyfriend brought them into the house. But sometimes I wonder if maybe she had sex with someone and gave them to me this would have been while we were engaged. I would have let all of this go even before we were married but she will not let me. She blames me for talking about it when I try to just tell me the truth and at this point I want the details so no new stories can creep in later. My wife never lies about anything else to me or anyone.
My question is am I wrong for wanting the truth and to put an end to this once and for all. I have told her over and over I fully for give her but she keeps hounding on it. I could even for give her if she slept with someone during our engagement after all it has been nearly 30 years and we have a great life together. What should I do?