In the Rich Kids Of Beverly Hills episode 7 of season 4, the show starts with Brendan and Morgan trying on their rings together one last time before they get married and ends with a heated argument between Bianca and Morgan.

Dorothy goes to dinner with her mom and confides in her about the drama with Bianca in the previous episode of Rich Kids Of Beverly Hills and the name Bianca said Morgan called Dorothy behind her back. Dorothy explains she does not feel like she can handle going to Morgan's bachelorette party in Miami. After her mother encourages her to go to Miami for Morgan, she decides to go after all.

While in Miami, EJ, Dorothy, Morgan and her friends go to dinner to talk about the bachelorette activities for the following day. Later that night, her friends decorate the hotel room while Morgan stays at the restaurant with her friend. Morgan says she is noticing that Dorothy seems off and more quiet than normal.

To start the new day, the bachelorette group starts the day off with drinks. Zahara, Morgan's friend, presents the group with a scavenger hunt between two teams that include giving a stranger a lap dance, kissing a stranger and taking shots. After the long day, the groups regroup over drinks. Later, the group goes to dinner and EJ asks about her talk with Bianca. Dorothy decides not to bring up what was said about Morgan in front of everyone.

Back in the hotel room, three male strippers (including one dressed up as a Papa John's worker) join the party as her friends record videos of the many lap dances. After one stripper accidentally drops Morgan, the men leave and Morgan and Dorothy make time to talk alone.

After Dorothy tells her about what Bianca said, Morgan says she cares about her and owns up to what she said. She deeply apologizes to Dorothy for the words she said in the past. Dorothy says she needs time to process and think about things. Later, Dorothy FaceTimes with Bianca and the two talk about the conversation she had with Morgan. Dorothy asks Bianca if she wants to come to Miami and Bianca agrees to meet her.

After the two talk, Morgan FaceTimes Brendan and talks to him about the situation. Brendan also tells her that although she means some things in a funny way, it can come off as rude. Morgan says she realizes that she needs to be more careful with her words. During a confessional, Dorothy says she knows Morgan said the right words but is not sure how to feel about Morgan after what she said about her. Dorothy seeks advice from EJ and he says while the words were ugly, he does not feel like her friendship with Morgan is a lie. Dorothy tells EJ Bianca is coming and says Morgan has a right to know that she will be there, as well.

Once Bianca gets to Miami, Dorothy and Bianca go to dinner and Bianca tries to convince her to not be a bridesmaid for Morgan's wedding. Bianca also says she is hurt because of the way Dorothy is protecting Morgan and because she is still friends with Morgan. Suddenly, Morgan shows up at the restaurant looking upset. Morgan confronts Bianca, and after a heated moment and a huge exchange of words, Morgan says she is done with Bianca. The Rich Kids of Beverly Hills episode ends with Bianca upset and feeling revengeful.

Watch Rich Kids of Beverly Hills on E! every Sunday at 10 p.m.