Asking a guy if he is a virgin is okay because I don't think it matters much. But vice versa, it is kind of rude to ask a girl if she is a virgin. I wonder why it took you 8 months of dating and you seem not to know about him. You should have gone to intimate details like his style in relationships - visiting you at home, what he has to offer, etc. If you had gone through to those details then you would not be ashamed to ask him about virginity. But for me, virginity of the man doesn't matter. Whether he had sex with several women as long as he loves me and I would be the only one for him then the issue is more than settled.