A man’s girlfriend tells him that they couldn’t afford to buy beer anymore, so he would have to give up, which, for the sake of the relationship, he does.
Later, he finds out that she has spent £65 on makeup. He asks her how come that he had to give up stuff, but she does not? She replies that she needed the makeup to look pretty for him.
He says that was what the beer was for.
They are not together now.