Robert and Jackie move toward a new step in their real estate business; Frances faces the fallout of a successful opening at her gallery, and enlists Robert's help with a home-repair project; a returned favor from Frances sets Diane on a bender.
Frances invites art bigwig Skip Zakarian to Sylvia's upcoming show, where he shows interest in more than art; Robert has concerns when Jackie proposes that they team up on a house-flipping business.
Robert and Frances revisit their marriage counselor to set new ground rules for the children after Tom gets caught in a compromising position; Frances weighs her relationship with Andrew; Jackie seeks out Dallas' advice during a chance encounter.
Frances learns Robert has a new woman in his life, and enlists Diane and Dallas to gather information on her before Lila's 13th birthday party.
When Robert's father falls ill, Robert and Frances reunite in Ohio, where they reminisce about happier times and deal with Robert's overbearing sister, Cathy; Tom jumps at the chance to chauffeur Diane around town in her luxury car.
An inspired Frances attempts to track down an unknown painter; Diane ignores her issues with Nick by throwing herself into the gallery; sparks fly when Robert shows his house to a real estate agent.
Frances contends with Lila's growing resentment toward her; Robert reconnects with Janice, who tries to help him live out a fantasy; Diane blindsides Frances with a setup; Dallas attempts to call things off with Tony Silvercreek.
After finally signing divorce papers, Robert looks for work and a new living situation, while Frances battles insomnia and her newly complex relationship with her children; Dallas continues her secret fling with Robert's lawyer, Tony Silvercreek.
Tensions begin to ease between Frances and Robert; Frances' new lawyer makes a move that sends Robert on a vengeful path.
Frances takes issue with a lawyer's insinuations of negligence; Dallas makes a connection at Diane and Nick's party.
Frances tries to get a new job, but is troubled because Robert suddenly seems so happy, in spite of the divorce.
Frances learns that Robert has been misleading about their finances; Robert tries to start dating again.
Frances and Robert try to set aside their differences and make their annual Christmas trip to her parents' house with the children.
Frances learns that Robert has hired a lawyer; Frances attempts to connect with an influential artist; Robert pitches an investment opportunity to Nick.
Frances and Robert try to remain amicable as they meet with a mediator; Frances confides in a co-worker; Robert gets some surprising financial news.
Robert and Frances attend couples therapy to see if their marriage is salvageable; Frances gets advice from Dallas; Robert vents at work; tensions mount as Frances and Robert try to maintain a facade of normalcy for their children.
Frances rushes to intercept Robert before he tells the children that she is divorcing him; Diane waits for news on Nick's condition; Frances considers signing a lease to open her art gallery.
A middle-aged couple try to figure out if their marriage is worth saving after a shocking event at a friend's birthday party makes them take a hard look at their own lives.