
When Ben goes missing on Isabel's watch, Jackie threatens legal action and claims that she has never lost him, which she later admits to be untrue. Jackie and Isabel continue to have disagreements, largely over Isabel's parenting. That night, Jackie loosens up the tension by singing and dancing to " Ain't No Mountain High Enough" with Anna and Ben. Isabel 'outs' Jackie, so she informs Luke and the children of her diagnosis, resulting in Anna emotionally storming out. Isabel and Anna's relationship eventually improves, and they bond over shared hobbies: painting and music. Jackie actively sabotages Isabel's effort to bond with the children, even to the point of refusing to allow Isabel to take Anna to see Pearl Jam and then later taking her to the concert herself. She experiences a range of negative emotions, jealous of the woman who she feels is replacing her, and angry that after all of the sacrifices she made for her children, she will never see them grow up. In a plot twist, Jackie has been silently battling cancer for some time, and the disease is now terminal. After many arguments and hurt feelings involving Isabel, Jackie, and Anna, Luke proposes to Isabel, making her Anna and Ben's future official stepmother. She also continues to harbor malice towards Luke, as seen in confrontations about Isabel's parenting. Jackie, a former publisher turned stay-at-home mom, treats Isabel coldly, seeing her as an immature, selfish, overly ambitious career woman.


Isabel behaves with contempt tempered by caution around Jackie, believing she overcompensates for the divorce by spoiling her children. Anna repeatedly rejects her overtures while Ben, who likes her, adds extra complications with his mischievousness. Isabel, who has never wanted to be a mother, tries hard to make Anna and Ben feel comfortable with her. Luke, an attorney, is living with his girlfriend of one year, Isabel Kelly, a successful fashion photographer several years his junior. Jackie and Luke Harrison are a divorced New York City couple struggling to co-parent their children Anna and Ben.
