A subcategory of Romantic Comedy, where the Official Couple were once married, but have divorced each other. Eventually they decide that they want to be married to each other after all. A major staple of the classic Hollywood screwball comedy, many examples of this genre owe their existence to the Hays Code, although the trope existed before that. Since the Code prohibited depictions of infidelity, it was necessary to have the characters divorce, then fool around with other people, then get back together. It's practically a given that either the ex-wife or ex-husband has a Disposable Fiance.