Aria forgets her cell phone in Mr. Fitz's apartment, and after he reads a message from A, he decides to break up with her rather than risk being fired. Hanna has to work in a dentist office to pay for the damage she did to Sean's car and gets some new information from A about one of her friends. Emily hides her budding friendship with Toby due to the girls' suspicion about him, hurting his feelings. Spencer's father tells her to throw a tennis match against a possible client and his daughter, and Ella deals with her husband's cheating.