Who is Lady Booby from Joseph Andrews ; with Shamela ; and Related Writings: Authoritative Texts, Backgrounds and Sources, Criticism and what is their importance?

Lady Booby is the widow of Sir Thomas Booby. She attempts to seduce Joseph Andrews and dismisses him when he rejects her advances. She struggles with her passion but cannot seem to overcome it. Concerned with her reputation, Lady Booby demonstrates Fielding's theme of vice's ability to disguise itself.