Mr. Harris returns just as Christine starts falling in love with Max.

Christine mistakes a good looking cop for a stripper, who alerts her that there is a prowler in the neighborhood. In order to feel more secure, Christine asks Matthew to stay over. Meanwhile, New Christine goes into labor, with the sole goal of avoiding having the baby arrive on Old Christine's birthday.

Christine hesitantly allows New Christine to arrange a blind date for her and finds her intuition against the idea was spot on.

When Christine learns that her close friends, Barb and Pete, are responsible for introducing Richard to his "new" Christine, she allows them to set her up on a blind date of her own. After a series of unsuccessful dates, she finds the possibility of love in the strangest of places. Meanwhile, Matthew takes Ritchie to swimming lessons.

Richard learns from a gloating Matthew that Christine is out enjoying her fifth date with a new beau, Burton, so he does what any self-respecting ex-husband would do: he sabotages the happy couple's goodnight kiss and insults Burton with lawyer jokes. But when he tries to make it up to them by inviting Christine and Burton to dinner with him and "new" Christine, his best-laid plans go awry.

After 10 dates, Christine faces a critical moment in her relationship with Burton. Will she or won't she? Let him in the house, that is, to meet her son, Ritchie. She eventually relents, only to be thrown for a loop later.

Concerned about the uniformity of Ritchie's schoolmates, Christine takes it upon herself to help diversify the student body at his private school.

Christine volunteers to help out at Ritchie's spring carnival and while there, she runs into the mean moms -- Marly and Lindsay -- who are clucking over the attractive father of a new student at Westbridge. Christine is excited to learn that the hot dad is her ex-boyfriend, Burton, but her hopes of re-igniting their romance are shot down when she learns Burton has a new girlfriend.

Christine tries to control her hormones when her gynecologist says she may be entering perimenopause.

Christine offers to marry Barb to help her stave off deportation. Meanwhile, Richard looks to pop the question to New Christine.

Richard begs Christine for the return of her old wedding ring which was an heirloom from his mother, in hopes of giving it to new Christine when he proposes.

Barb's profile in a business journal brings in new clientele.

Christine is distraught when Ritchie stops saying "I love you" to her. When she reveals her distress to Matthew, she also admits that she's been sleeping in Ritchie's room every night. Matthew tells her that if she's not careful, Ritchie will end up like him -- he can't go to sleep without talking to their mother. They spend the night helping each other break these habits.

Christine and Barb prepare for a casual, non-relationship-seeking double date with two guys they meet at a video store, but jealousy arises when only one of them gets asked out for a second date.

A talent scout caught Ritchie's great school performance and he liked what he saw and offered him a audition to do a TV commercial, much to a thrilled Christine, but Richard won't approve of it and refuses to like him go.

Christine thinks she has the perfect boyfriend, until he has a 'bizarre' reaction to her competitiveness after losing to her at tennis.

Over a Thanksgiving visit, the discovery of a shared secret gives Christine a way to negate one of her mother's criticisms.

The girls change their building into a spa after learning that they can't get a loan to keep their gym afloat.

Christine tries to make a good impression at the Parents Orientation. However, her behavior is anything but good when she recognizes one of the fathers as the boy she knew in junior high.

With Barb and Mathew moving out and Ritchie leaving for science camp, Christine wants to prove she can take care of herself.

At first Christine is impressed when another mother considers her a "rock," but soon finds it's exhausting being responsible.

Christine finds out a secret about Jeff after they rekindle feelings for each other at Richard and New Christine's wedding. Matthew continues to date Amy, and Barb meets a possible love interest.

Old Christine finds a suspicious mole on her left breast, and overreacts, thinking shes dying. Meanwhile, Richard tries to negotiate with New Christine regarding their house.

Barb, afraid that a marriage proposal is iminent, asks Christine to run interference on her next date with Dave; Richard realizes he must try to woo New Christine if he wants her back.

Christine tells her therapist, Max, that she is in love with him, but his reaction is not quite what she is expecting.