Why are people so satisfied when a stuck up girl becomes fat, and why is fat still such an insult for women?

*WARNING, INSECURE WOMEN OR MEN ENTER AT YOUR OWN RISK, AND PLEASE BE KIND BUT HONEST IN YOUR RESPONSES*

So my brother had his friends over and they were talking about the girls that rejected them.
It seemed like they really enjoyed the fact that especially the "stuck up", popular and/or really attractive ones gained weight. Smug satisfaction.
Literally, they'd be like "Remember _____, when you asked her out? Guess what, she's fat af now." And they'd all laugh and be like "ha! Serves her right for being conceited".
Or another one was having multiple babydaddies, or being a single mother. However, there seemed to be a consensus that a single mother is more dateable than a large woman. That sounds so degrading to say, but it's their standards and how they feel.

Also, if you've ever disagreedwith someone online, if you're female, you've probably been called "fat" as a generic insult. I know I have, especially when I don't have my pic up, people throw that "oh you must be a bitter fat chick" line. I'm bitter lol but not fat.

So my question is, why is being "fat" such an insult for women?
And I guess poll question, would you rather date a big woman or single mother?
I'd rather date a big woman.
I'd rather date a single mother.
Why not both?
Select gender and age to cast your vote:
Why are people so satisfied when a stuck up girl becomes fat, and why is fat still such an insult for women?
Post Opinion