She was any number of people I've seen.

Claudette, who went out with my friend Brian in the 70s was one such. Hell, I've seen thousands of girls like that. I see them in the shopping malls playing their little games. ;-)

As for those I've actually gone out with...hmmm...? Well, I had one that was considerably WORSE than the very common and tawdry type I described in my example. Far worse. The girl I was describing in my example was just regular, run-of-the-mill, it's a very common situation, but she was not directly inspired by anyone I've gone out with myself...just something I've observed around me. And I might just as well have used a guy in that example. They often play mind games on their girlfriends too.