Molly hopes to revitalize her career by using material from her diary in a writing workshop. Elsewhere, Joan wrangles an abrasive ex-sex symbol with her job at a rehab facility. Also, Rodney develops a crush on a client, a macho action star.
Molly's journal is stolen during a party in Zach's house and the result can be a disaster. Rodney has a surprise about his new client.
Molly has been recognized as the Hollywood Ex-wife by a gossip blogger, causing her to hide at the Destinies. Elsewhere, Rodney explains his relationship with Felix to Molly, and Joan starts an affair.
Molly meets with a Hollywood agent, Eve's husband, and is thinking of adding a P.I. element to her book. Elsewhere, Devon has Liz feeling suspicious; Felix and Rodney get into a fight; and Joan juggles both her friendship with Robin and a relationship with David.
Just as Molly's relationship with Zach progresses, Lou shows up. Liz's jealousy makes Devon feel distracted. David is persuaded by Joan into appearing in David's movie.
Kenny's threats to derail Molly's movie has her going to surprising measures to protect it.
A secret uncovered about Zach's past fills Molly with misgivings. Elsewhere, Molly thinks Lou's fiancee is holding a secret, and a surprise decision is made by Felix.
Molly and Zack reevaluate their relationship after a confrontation with Molly's stalker.
With the police investigating Pappy's disappearance, Joan makes her return to Los Angeles.
The season finale finds Molly assessing her future with Zach through Lou's wedding ceremony. Elsewhere, Joan reveals a confession, Rodney's relationship changes, and Liz's life becomes turbulent.