Dorinda confronts Ramona as mayhem from a lingerie party continues. Also, John arrives at the party and gears up for battle with Bethenny. Later, the ladies try to relax in the Hamptons to celebrate Bethenny's birthday, yet past dramas come into play.
Tensions between Luann and Bethenny reach explosive levels; Ramona accuses Luann of breaking the "girl code;" Dorinda has an epic meltdown; Jules' first weekend away with the ladies takes a turn as she is confronted with a family emergency.
Bethenny spills a damaging secret about Luann's relationship. Also, Luann gloats about her engagement; Bethenny and Sonja snoop and make a confrontational phone call; and an upsetting conversation marks the final morning in Miami.