I feel betrayed.

You should get some liquid nails or something and fix your cat flap. I don't think your cat is so fat that it broke the flap, I think the flap was poorly installed. While the cat looks large, it doesn't really look obese or awkward.

Here's a helpful wikihow on how to fit a cat flap.
http://www.wikihow.com/Fit-a-Cat-Flap

Welcome to poe, we take cats for realz and would like to ensure their comfort and freedom from poorly made cat targeted products.

LULZ!

One star for unfunny YT user submitting his own stuff. How is this fucking getting through the hopper?

Something something earmites.

You're mean to your cat.