The Countess addresses the cheating scandal in a heated phone conversation with her soon-to-be husband.
After Bethenny Frankel dropped a bombshell on LuAnn de Lesseps during last week’s episode of The Real Housewives of New York City, anticipation was at a fever pitch over how the Countess would react to proof her fiancé Tom D’Agostino Jr. had stepped out on her just one night before their engagement party.
In a sneak peek at Wednesday’s finale, de Lesseps goes off on D’Agostino over the cheating rumors.
The heated phone conversation happens just moments after Frankel showed de Lesseps, 51, photos of D’Agostino allegedly making out with a Playboy model at New York’s Regency Hotel.
“Bethenny just sent me the picture, Tom!” says de Lesseps. “You have no recollection? What does that mean? You were so wasted you don’t remember?”
She continues, “How could do this to me – at the Regency, in front of everybody! How can you do this?”
As soon as D’Agostino attempts to explain, the realty star interrupts: “She was giving you a kiss? You were making out for an hour!”
RELATED VIDEO: Countess LuAnn De Lesseps Spills Her Wedding Deets – Dresses, Serenading, and Bachelorette Party!
Despite the palpable tension, D’Agostino and de Lesseps are still scheduled to be married on New Years Eve in Palm Beach, Florida.
“I plan to make it a weekend to remember, with a cocktail party on a private yacht kicking it off,” she previously told PEOPLE.
The Real Housewives of New York City airs Wednesdays (9 p.m. ET) on Bravo.