Val's parents return for Christmas, and Val becomes concerned that her mother Isabel is having an extramarital affair with a young pianist. Val's interference leads her mother to find and read Val's diary. Isabel chastises Val and seeks out Henry, ostensibly to tell him to stay away from her underage daughter. The cheating Isabel and the womanizing Henry are quickly attracted to each other and begin an affair, which Val and Marian accidentally discover while stalking Henry outside his apartment. Val's devastation and Isabel's attempts to cover up her own behavior cause Frank to figure out what happened. Frank and Isabel separate, while the paranoid Henry flees the country. However, positive changes for Val result as Frank, who unlike Isabel genuinely cares about his daughter, resolves to stop traveling so much and establish a real home where he and Val can spend more time together. In the end, Val and Marian have matured and moved on from fantasy play to makeup, fashion and boys their own age.