Look, this all seems pretty juvenile on both sides.

>Even this happened in the worst possible way, with her having to prod me after an uncomfortable silence.

So she's making fun of the lack of experience of a guy who is supposedly a virgin and youre sitting there quietly seething thinking "fuck this girl, I've HAD sex before", but you dont want to tell her because youll blow your chance to....marry her? Because you know if she's seriously there's NO way she's gonna do it before marriage.