The reunion concludes when the ladies look back on their fun-filled trip to Mexico, from Lu's tipsy topple to the tequila-drinking marathon. Tinsley and Sonja attempt to clear the air and salvage their friendship. Bethenny questions the sincerity of Ramona's tearful apology. Ramona is forced to address the accusations she made against Bethenny this season.
Conclusion. Tinsley opens up about her traumatic relationship with her ex-husband; Carole reflects on her political aspirations; Sonja discusses her love triangle, which elicits shocking accusations from Dorinda; Bethenny reveals how she plans to move forward.
Dorinda confronts Sonja over the “Tipsy Girl” allegations; Luann gives an update on her first few months of marriage; Bethenny questions Ramona's attitude toward the others; the housewives speculate on Ramona's behavior.
Tinsley has Carole over to see her new digs. Luann and Tom challenge each other during a game of tennis. Bethenny deals with the stresses of renovating a new apartment, but finds distraction with a hot, new fling. Dorinda has John over for a romantic dinner, while Sonja and Frenchie talk about their upcoming trip together. Tinsley throws a party for Sonja.
The ladies drink it up following their trip to Tequila. Also, Sonja spreads the love; Bethenny and Ramona ease hostility with an unclad visit to the pool; some of the ladies split off for fishing and whale watching; and the women have a final dinner.
Drama continues in Mexico when Bethenny corners Ramona about attending the Tequila trip. Also, Tinsley readdresses a press article with Sonja; some ladies try to surf; the gang embarks on a day-drinking trip to agave fields; Ramona lands in the hot seat.
The ladies arrive in Mexico, with Ramona and Sonja scrambling for the best villa room and swiftly alienating themselves. Also, Tinsley addresses a damaging article about her, Luann takes a boozy tumble and Bethenny reprimands Sonja for her bad behavior.
Bethenny fine tunes a looming trip to Mexico. Also, Carole has her day in court; Sonja receives intimate cosmetic treatment; Dorinda hosts a dinner, where Bethenny faces an invitation issue; and Tinsley practices her flirting on a blind date.
Sonja gets into deeper trouble with Luann. Meanwhile, the ladies hit the slopes as a big story breaks about Bethenny; Bethenny contemplates inviting Ramona to Mexico; the women play a revealing game of "Truth or Dare"; and Dorinda attacks Luann.
An old-school skirmish erupts between Dorinda and Sonja during a lunch in the Bronx. Also, Tinsley breaks down during therapy; the ladies head to Vermont for a snowy weekend, despite tension between Ramona and Bethenny; and Tinsley's life decisions are discussed.
A love triangle turns complicated. Meanwhile, Tinsley hunts for an apartment; Carole and Adam bicker; Carole and Dorinda head to Washington, D.C., for the Women's March; and Ramona throws a party, complete with a surprising guest list.
Bethenny hosts her annual holiday bash, but Ramona's not invited. Also: Ramona receives advice about Bethenny from her daughter; Luann and Tom's nuptials arrive, with the couple hosting a New York City reception for friends not invited to the wedding.
A fight in the Berkshires between Bethenny and Ramona reaches an explosive level. In the Big Apple, Luann and Tom host a pre-wedding lunch with Dorinda and old pals Jill and Bobby Zarin. Also: Luann and Tom head to Palm Beach for their wedding.
Bethenny discusses selling her apartment with broker Fredrik Eklund ("Million Dollar Listing New York"). Also: New rumors fly about Luann's fiancé; Tinsley's mom visits; and Dorinda hosts a birthday-holiday weekend for the ladies at her Berkshire home.
Ramona gets advice from her daughter about Bethenny. Also: Bethenny tells Dorinda all about her new apartment; a trio have a night out in the Upper East Side; Bethenny meets Luann's fiancé; and Carole discovers there may be trouble in paradise.
Carole attends a memorial service. Also, Bethenny considers upgrading to a larger apartment; tensions rise between Sonja and Tinsley; Dorinda gets a peek at Luann's wedding dress; and a get-together over drinks is soured by confrontations.
Carole goes canvassing with her mother in the last moments before the presidential election. Later, Carole hosts an election-night party. Also, Sonja is conflicted between "Frenchie" and Rocco; Dorinda tries to get Ramona to a surprise bash.
Ramona's dinner party in the Hamptons is interrupted by Dorinda's confrontation with Sonja. Meanwhile, Carole crosses Ramona off her guest list for her Election Night party because she doesn't think Ramona is serious about the presidential election; and Tinsley has drinks with Luann and Dorinda, but leaves out her roommate Sonja.
The ladies go to the Hamptons for the weekend. Included: Carole is consumed with the election; Dorinda gears up to see Sonja in the wake of gossip dramas; and Ramona takes the wrong approach when asking Bethenny about a past film role.
Tinsley Mortimer moves to the city and is the latest boarder in Sonja's townhouse. Also, Bethenny, Carole and Ramona discuss life, politics and Sonja's new roommate; Ramona spills information about Luann's fiancé; Sonja hosts a Mad Hatter tea party.
It's fall in New York City and Luann addresses her unfolding wedding plans in the Season 9 premiere. Also: Dorinda complains about Sonja's bad mouthing; Bethenny works to sell an apartment; and Luann faces Ramona about her continuous meddling.