<human>: Can you give me the gist of the text in a nutshell?

Recently I began talking to a girl who I hadn't known very well, she was really nice so I gave her a chance and agreed to give her my number and see where it went from there. Once I told a close friend of mine who I was talking to he laughed as if I was making a terrible decision, and exclaimed to me that she was a total whore. In lack of belief I shrugged his insults off and proceeded to find out from myself, after talking to her for a while she told me she has been bouncing around from school to school because she didn't like the ones she was in, I believed her and left it as that because none of our conversations led me to believe she was a "whore". I later decided I really liked her and started dating her. 

Soon after the same friend who told me she was a whore says he needs to tell me something about her, I asked what it was and he wouldn't tell me until we were in private. I give him a ride home today and he tells me she got suspended from her old school for giving a guy oral multiple times on campus, now I'm not one to judge a persons past but this is upsetting and hard to ignore. Should I ask her about it? Should I tell my friend to fuck off and stop trying to sabotage my relationship? What should I do?
<bot>: My SO got suspended from here last school for giving oral to a guy three times on campus, how do i proceed with this relationship and how do I go about asking her about it?