It's wrong to support someone's cheating lifestyle.
Jerry's friend Johnathan calls him up and asks him if he can bring his mistress over to Jerry's place since Johnathan's wife is at home.
Jerry needs to decide how to answer.
Jerry refuses to accommodate Johnathan, and tells him to find someplace else.
Jerry agrees to let Johnathan bring the mistress over, and the two borrow his guest bedroom.
Johnathan's wife finds out about the cheating, but thanks Jerry for not being a part of it.
Johnathan's wife finds out, and learns Jerry's role in the situation and tells him he's horrible for enabling Johnathan's behavior.