It's a mixed bag. It honestly depends on the SMV disparity. I've gotten all sorts of reactions from bitches crying, some get angry and yell and curse me out, some are totally apathetic, some even offer to meet up still. I've had my life threatened, legal threats (from a jewish girl of course). I've actually met a lot of women from catfishing but of course it never goes anywhere past platonic. I've had girls come back months later telling me I made them avoid dating apps and gave them trust issues lol....
How angry or sad the girl is is largely dependent on how much of her time was wasted, or how ugly and fat she is. Ugly and/or fat chicks know they don't get as many chances with chad so it cuts deeper.
Attractive girls often don't give a fuck and just move on.