Lily and Rick deal with the ghosts of their failed marriages. Rick's becoming consumed with a project at work triggers Lily's memories of Jake doing the same thing in their marriage, causing its downfall. Meanwhile, Eli's frustration with his schoolwork reaches new depths.

Lily's father decides to invite Jake to Thanksgiving at Lily's house against her wishes. Her father has difficulty in deciding whose side of the divorce to support.

Lily hires a divorce attorney. The last straw is after Jake reneges on his promise not to max out their credit card. She finds this out after it's rejected at a store. Grace meets a boy who seems to think like her.

Lily and her family cope with a life-altering accident.

Aaron proves to be a source of comfort and renewal for the Manning family; Lily gains ground in the divorce proceedings.

As the wedding approaches, hardly anything is finalized. Lily's father appears to her in her dreams. He asks her to ask Jake ""what's been lost"". Grace gets a letter from Carla, who's living with her brother, saying that she misses Grace, but not Eli. Grace lies to Eli and says Carla does miss him. Rick finds out that he's really low on cash and his attorney asks about scaling back the wedding plans. ""What's been lost"" is Jake's restaurant. He tells Lily this when she goes to pick up the cocktail napkins. Judy finds out details about Will's past through Tiffany, like that he has a daughter he gave up for adoption. Disagreements about who's staying where and who's paying for what prompt Lily and Rick to call off the wedding. Eli finds Carla's letter. Jesse calls Karen to tell her that the wedding is back on, and Karen sheds a tear. Jesse knew that her mother was secretly hoping that Rick wouldn't go through with the wedding. Lily's mother surprises everyone by showing up. Lily sees her a

Just when Lily thinks life can't get any more complicated, her mother begins to show early signs of Alzheimer's disease.