The reunion concludes when the housewives 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. However, the reunion takes a turn when Bethenny questions the sincerity of Ramona's tearful apology. In the hot seat, Ramona is forced to address the accusations she made against Bethenny this season.

In part II of the reunion, new housewife Tinsley opens up about her rocky re-entry into NYC life and reveals some big news. Carole reflects on the turbulent election and the status of her relationship with Adam, while Sonja discusses her personal love triangle, which elicits a shocking accusation about her French lover. Additionally, Bethenny gets emotional talking about her personal life and how she is planning to move forward.

In Reunion Part I, the ladies put it all out on the table, and everyone is called out for their bad and good behavior. Kicking things off with a bang, Dorinda and Sonja hash out their early season issues. Meanwhile, Luann faces more allegations about Tom from the women and continues to defend her marriage. The Bethenny and Ramona battle takes another turn as Bethenny questions Ramona's attitude toward others and the housewives speculate on Ramona's behavior this season.

After moving out of Sonja's townhouse, 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 to France together. The ladies all come together when Tinsley throws a thank you party for Sonja.

Following their day trip to Tequila, Jalisco, the women drink up and strip down at the villa; Dorinda and Bethenny get into a fight; some of the women head out for a day of fishing and whale watching; Luann flubs the rules of a game.

It's a new day in Mexico and the drama continues as Bethenny confronts Ramona about attending the Tequila trip. Tinsley readdresses the press article with Sonja, while some of the other ladies try their hand at surfing. The ladies all go shopping together and Ramona tries to buy her way back into Bethenny's good graces. Tinsley and Sonja's tension resurfaces at dinner. Bethenny takes the ladies on an educational day-drinking trip to the agave fields in Tequila. The ladies ride the drunk train back to the villa where Sonja puts Ramona in the hot seat.

As the women arrive in Mexico, Ramona and Sonja scramble for the best room, swiftly alienating themselves from the the group; Tinsley confronts Ramona and Sonja about a damaging article; Luann takes a tumble; Bethenny reprimands Sonja.

Back in the city, Bethenny fine tunes the upcoming trip to Mexico. Carole has her day in court while Sonja gets an intimate cosmetic treatment. At a dinner thrown by Dorinda, Bethenny is forced to face Ramona and the Mexico invite situation. Tinsley practices her flirting on a blind date set up by Carole.

Sonja digs a deeper grave for herself with Luann. While the ladies hit the slopes, a big news story about Bethenny breaks out online.  Bethenny is on the fence about inviting Ramona to Mexico. At dinner, the ladies play a revealing game of "Truth or Dare" and Dorinda ends up attacking Luann. 

Dorinda fights with Sonja while at lunch in the Bronx; Tinsley breaks down; despite the tension between Ramona and Bethenny, all of the women head to Vermont; Tinsley feels as though the others are ganging up on her in regards to her life decisions.

Sonja's love triangle gets more complicated as things heat up with "Frenchie." Meanwhile, Tinsley goes apartment hunting. Carole and Adam bicker over items he left behind in her apartment. Fredrik and Bethenny look over her apartment as they plan to put it on the market. Carole and Dorinda go to Washington DC for the Women's March. Ramona throws a party at her apartment with a surprising guest list.

Bethenny hosts her annual holiday party but doesn't invite Ramona; Luann and Tom get married; Tinsley learns that Frenchie has moved into Sonja's townhouse; Luann and Tom host a New York reception for the friends not invited to the wedding.

Bethenny and Ramona's fight reaches an explosive level; Carole shows Tinsley an available apartment; Luann and Tom host a final pre-wedding lunch with Dorinda and old friends; Carole serves as host of an art opening; Luann and Tom head to Palm Beach.

The ladies join Dorinda in telling Luann what they've been hearing about Tom's alleged indiscretions. Emotional over her own situation with her ex, Bethenny urges Luann to get out now if she has doubts. Ramona's weird behavior at dinner throws everyone off. The conflict between Bethenny and Ramona reaches new heights when they find themselves alone in Dorinda's living room.

Bethenny meets with friend and broker Fredrik Eklund to discuss selling the Mercer apartment. Ramona shows Carole a text she received from a friend regarding Luann's fiance, Tom. Tinsley's mom, Dale, is in town for a visit. Dorinda continues her annual tradition of having the ladies up to her Berkshire home for a combined birthday/holiday weekend. Before Luann arrives a few of the women make Dorinda aware of new rumors about Tom and they decide an intervention is needed.

While out furniture shopping, Bethenny lets Dorinda know all about her new apartment. Ramona gets advice from her daughter Avery about her situation with Bethenny. Tinsley, Ramona and Sonja hit the Upper East Side for a night out on the town. Tinsley has to answer to Sonja when she meets a young suitor who does not meet all the qualifications on her list. At Dorinda's charity event, Bethenny meets Luann's fiancé, Tom, for the first time and Carole  gets info from a friend of Luann's that there may be trouble in paradise.

Carole attends the memorial service Dorinda has for her husband, Richard, who died five years ago. Bethenny considers upgrading to a larger apartment. Tensions between Sonja and Tinsley are on the rise as Sonja blames her for everything wrong in the townhouse, forcing Tinsley to think about moving into her own place. Dorinda and the other bridesmaids get a sneak peek at Luann's wedding dress. Over group drinks, Ramona first questions Luann about not being invited to her wedding and then decides to confront Bethenny yet again.

Carole and her mom go canvassing in Pennsylvania in the last moments before the presidential election, and later Carole and her friends watch the results come in while at her party. Sonja is conflicted between "Frenchie" and Rocco. Dorinda conspires to get Ramona to a surprise party she's throwing for her, but Ramona unknowingly throws a wrench in the plans.

Ramona's Hampton's dinner party continues and barely into the salad, Dorinda takes the conversation to a new level when she confronts Sonja about her incessant trash talking. Carole disinvites Ramona from her Election Night party because she doesn't believe Ramona is taking the presidential election seriously enough. Tinsley gets drinks with Luann and Dorinda, but leaves out her roommate Sonja.

The women head to the Hamptons for a weekend of fun and an early birthday dinner at Ramona's; Carole talks about the election; Dorinda prepares to see Sonja; Ramona takes the wrong approach with Bethenny when asking about her film role.

Tinsley Mortimer moves back to the city; Bethenny invites Carole and Ramona over to discuss life, politics and Sonja's new roommate; Ramona fills Dorinda in on the dirt she has about Luann's fiancé, Tom; Sonja throws a Mad Hatter tea party.

Luann tells Dorinda about her wedding plans; Bethenny and her realtor friend seek to sell the apartment; Carole, who is invested in the upcoming presidential election, makes changes to her living situation; Luann confronts Ramona about her meddling.

Highlights from the past two seasons of "The Real Housewives of New York City,'' including Bethenny's return, Luann's quest for love, Sonja's financial woes, Carole's romance, Ramona's dating life, and Dorinda's introduction to the friends.