Mrs. Liverby decides to make him jealous and writes a love letter to herself, allegedly from a young man. Mr. Liverby finds a love letter, but when he learns it was a joke he forgives her.
Mrs. Liverby writes a love letter pretending it's from a young man to try and make her husband jealous.  Mr. Liverby finds the letter, but upon discovering it was a prank, he forgives her.