Season 4

Morgan's bridezilla ways push Brendan over his limit as they plan their wedding; Dorothy leans on Bianca for support when she has trouble with her boyfriend; EJ gets his own place; Jonny's world is rocked by a health scare.

EJ takes Dorothy up on her offer to help him find love and they begin looking for eligible men on the streets of Rodeo Drive; Morgan apologizes for her bridezilla ways but new issues arise; Bianca lets Dorothy and Jonny in on a little secret.

Morgan and Brendan learn their wedding date may be doomed; EJ decides to create his own business empire; Dorothy takes everyone to Las Vegas to celebrate her birthday; Dorothy becomes frustrated by Bianca's behavior and the two come to blows.

When Morgan scores an important meeting with a best-selling author, her career goals conflict with her wedding planning duties; Brendan picks up the planning slack, which also makes him realize Morgan's writing may be too scandalous.

During his bachelor party, Brendan confides in Jonny and struggles with Morgan's decision; EJ contemplates a relocation to New York; Dorothy's world turns upside-down when Bianca reveals that Morgan isn't the friend Dorothy thought she was

The threat of rain on their wedding day causes a fight between Brendan and Morgan; Morgan escapes to New York City with EJ, and Dorothy and Bianca's troubles come to a head at Jonny's birthday.