Managing a household budget is hard. Even if you have more than enough money to cover your regular outgoings, discussing money as a couple is a tricky area. Often you both have different priorities and different ideas about what is essential and what is just nice to have.
This couple seems to be even further apart than you’d expect in terms of their financial decision-making processes. For the wife: food, bills, maybe a few nice meals out. For the husband: jeans for the dog. It doesn’t seem like the dog gets a say in this situation.