For any cognitively normal man, lard assery on a girl makes her sexually invisible at best and nauseating at worst. On those tragic occasions when your girlfriend plumps up, few things can evoke your contempt and boner deflation faster. You lose all interest in fucking her. It would be much more enjoyable to have a fap, or fuck a crease in a pillow.

This is not me being a shitlord asshole bigot douchenozzle, but me speaking the plain truth of automatic, primal male psychology. This is how we are wired. Girls in relationships or marriages (shudder) who have fattened up, we find your fat rolls vomit inducing. It drains the zest out of our feelings for you.

Fatness is a repulsive trait, indicative of genetic inferiority and mental weakness. In women it's especially repulsive.

The seething contempt women have for weak betas and omegas (within the confines of a relationship) is genetically equivalent to our contempt for tubsters. Invisible to us if we have nothing to do with them, but making us sick with disgust if we are romantically fastened to these bloating animals.

To be in with a good shot of a man wanting to move heaven and earth for a girl, all she has to do is:

  1. Be sweet, aka don't be a cunt
  2. Be slender, aka don't stuff your fat face all day

Most women can't manage these two basic tasks. For men to achieve the equivalent value in the sexual market, the task ahead is much greater, much more difficult. I needn't elaborate it here, the whole subreddit is partly dedicated to it.

You genuinely feel bad for telling a girl she's gotten fat and unattractive. We know it's such a primal issue that girls are deeply sensitive about, even the ones who pretend to be fat and proud. You can't just say "lose the weight you fat whale", just as a woman can't say "be an alpha you weak bitchboy". We want people to do what's right without having to be told.