[TOMT] [Film] Film where the husbanded disgusted by the idea of sleeping with his wife

It’s a drama where the husband can only have sex with women he’s not married to. His wife makes a move and he says something like “no you’re my wife”.

They eventually get divorced and he marries his mistress. Then struggles to have sex with her also.

I never saw the film; only a YouTube essay on it. But I really want to find it.