Charlie runs into Chelsea’s old friend Gail. Alan gets a new female patient at his chiropractic office.

Charlie and Chelsea’s break-up doesn’t stop them from sleeping together again.

Charlie goes to Las Vegas and comes back to Malibu married.

Chelsea is put off by Charlie’s jealousy.

Chelsea is put off by Charlie’s jealousy.

Charlie has a colonoscopy to avoid visiting Chelsea’s parents, who he then finds in his house when he gets home.

Jake hopes to win back Celeste by writing her love songs. Judith tries to quash Alan and Herb’s new friendship.

Charlie helps Jake cheat on his girlfriend while she’s away for the holidays. Evelyn brings a television producer to Charlie’s Christmas dinner.

Charlie helps Jake cheat on his girlfriend while she’s away for the holidays. Evelyn brings a television producer to Charlie’s Christmas dinner.

Charlie’s broaching the subject of a pre-nup leaves him stunned to discover Chelsea has just as much need for one as he does.