Characters
Yeah, it’s awful, man, when a woman screws you up so bad you want to become a squirrel.
— Cat ‧ Red Dwarf

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker agrees, casually, that it is awful when a woman messes someone up so badly that becoming a squirrel seems preferable. The exaggeration treats emotional damage as a reason to escape being human altogether, and the absurd wish keeps the complaint comic rather than tragic.
Context reviewed