How is this misogynistic? It's a tongue-in-cheek reference to an old cliché, and it's funny. It would be misogynistic if its point was that all girls are awful;

How is this misogynistic? It's a tongue-in-cheek reference to an old cliché, and it's funny. It would be misogynistic if its point was that all girls are awful; what it is saying is that it's like that stereotypical girlfriend situation where she's cleaned up but is still a quote-unquote crazy bitch. Calling a girl a crazy bitch is misogynistic in the same way that a girl calling a guy a dick is misandric. We can use gender-specific analogies without it becoming hateful towards that gender.