My Wife's Best Friend (1952)

Thinking that the airplane they are flying in is about to crash and death is imminent, a husband confesses to his wife of eight happy years, that he had a brief affair with her best friend several years ago. The wife forgives him until they land safely at the airport, at which point she becomes furious and begins making life miserable for him. She dons the role of several martyrs, including Cleopatra, in her payback scheme.