Something I've been thinking of. How widely accepted men's jokes about a weekend with the lads/night out etc to get away from "the misses", how people describe marriage as a ball and chain, jokes like "single women are skinny because they see what's in the fridge and go to bed, married women see what's in the bed and go to the fridge,".
I've never understood why you'd marry someone you don't enjoy spending time with and I've started to think most people perhaps don't actually like their husbands or wives...