Final answer:
Bly gets mad at Mrs. Standard because she accuses him of cheating and lying.
Step-by-step explanation:
Bly gets mad at Mrs. Standard because she accuses him of cheating and lying. In the book A Lantern in Her Hand, Mrs. Standard's husband, Arthur, is unhappy with Bly's growing friendship with their daughter, Abby. When Bly brings an injured bird to the Standards' house, Mrs. Standard questions Bly's intentions and accuses him of stealing the bird. Bly becomes angry and defends himself, leading to a heated argument between him and Mrs. Standard.