In the season finale, Christy tries to help when Bonnie gets into trouble with the IRS but, realizing she’s in over her head, she encourages Bonnie to seek help from her newfound brother, Ray.
Christy and Jill take Emily to see her biological mother, Natasha, in rehab where they make a surprising discovery, and Bonnie watches Adam’s dog while he’s out of town.
When Marjorie takes a break from the group, Bonnie becomes the go-to for everyone's problems and Christy tries to overcome a painful memory from her past.
Christy annoys everyone when she adopts her new boyfriend Brad's healthy lifestyle, and Bonnie and Adam decide to take the next step in their relationship.
Following the death of Bonnie's mother, Christy and Bonnie learn that she kept a very big secret.
Christy helps Jill adjust to being a new foster mother, and Bonnie has trouble convincing tenants that she's a good building manager.
When Christy and Adam get into a car accident, Bonnie is hurt to discover she is neither of their emergency contacts.
When Bonnie discovers Adam is still close with his ex-wife, Christy worries the emotional fallout could jeopardize Bonnie's sobriety.
When a heartbroken Bonnie drives everyone crazy, Christy begs Adam to take her back.
When Bonnie connects with a handsome, sober stranger, Christy worries that she’s jeopardizing her relationship with Adam,
Christy, Bonnie, Jill and Wendy get high after accidentally eating cookies filled with marijuana.
Bonnie encourages Christy to pursue Marjorie's charming nephew, Nick, despite the fact that he's been declared off limits.
Christy feels left out when Bonnie and the ladies keep Jill’s pregnancy a secret,
Christy and Bonnie have their hands full when Adam's hard-partying friends come for a visit.
Christy and Bonnie dip back into illegal activities, and Adam questions their morality.
Christy and Bonnie worry about Jill after her cry for help on the anniversary of her mother's suicide.
Christy becomes overprotective and keeps a constant eye on 12-year-old son Roscoe after discovering he's been using drugs and alcohol.
Christy and Bonnie rush to a sick Violet's side, only to find out that having mono is the least of her worries.
Christy and Bonnie worry that Roscoe has a drug problem when Baxter and Candace catch him smoking pot.
Bonnie fears she's become undesirable when she catches Adam smoking pot before sex, and Christy tries to smooth things over between them.
Christy considers giving up her dream of becoming a lawyer when Bonnie's ex-girlfriend, Jeanine, offers her a lucrative job in real estate. Also, Adam is very curious about Bonnie's past with women.
In the fourth season opener, Bonnie and Adam's relationship is tested when he moves in with her and Christy for a few weeks. Also, Christy learns the hard way that it may be a mistake to try and meet men with Jill.
