The lesson here seems to be that men don't like loose women, even if the women in question would only be considered loose by, I don't know, a 1950s-era Lutheran minister.
So hear that, impressionable young girls? Don't be dirty little sluts like this girl here who's never had sex or had a boyfriend or probably even kissed anyone, okay? You should also remember to never wear glasses, as no boy will ever like you if you do.
If you'd like more advice similar to the above, I suggest you check out Hersteria, which culls its material from generations-old sex manuals as opposed to ridiculously behind the times comic strips.