She was quite shocked that MC was still a virgin and had no sexual xp whatsoever, she wouldn't have been shocked if she was still a virgin.
It's that old social hypocrisy,
Boys a pressured to lose their virginity as soon as possible, and as derided if they fail to do so,
while girls are (or were) expected to hold their virginity as precious (yeah I know hard to imagine), and risk getting derided as sluts if..... I'm not sure what the parameters are now for sluts, that line keeps shifting, but the risk is still there even with other new more feminist worldview. (Hell feminists can be some of the worst for slut shaming other women)
...But the best way to solve this would be to just ask WWG the next he pops his head around here.
Blah, no thanks, it's like how google ruined all the good barstool arguments that used to be common in pubs, the fun is in the debate.
My post was less about trying to define her as virgin or not, more a counterpoint to other arguments, almost all girls in these kind of games who are aggressive/argumentative are so because they had an experience that made them fearful of sex. Its an old overused meme.