Entertainment TV Bethenny Frankel Says She Has Evidence LuAnn de Lesseps' Fiancé Cheated The Real Housewives of New York City airs Wednesdays (9 p.m. ET) on Bravo By Dave Quinn Dave Quinn Instagram Twitter Dave Quinn is an Editor for PEOPLE, working across a number of verticals including the Entertainment, Lifestyle and News teams. People Editorial Guidelines Published on August 3, 2016 11:00 PM Share Tweet Pin Email Trending Videos Photo: Bravo Bethenny Frankel previously teased that she had evidence that could “blow up” LuAnn de Lesseps‘ engagement to Tom D’Agostino, Jr.. And on Wednesday’s Real Housewives of New York City, the Skinnygirl mogul finally revealed the explosive news. According to an unnamed source close to Frankel, D’Agostino, Jr. had allegedly been unfaithful to de Lesseps the day before her Palm Beach engagement party, making out for more than an hour with a Playboy model at New York’s Regency Hotel. “I remember it like it was yesterday – it was yesterday,” she joked. Frankel’s source said that D’Agnostino, Jr.’s level of sobriety could prevent him from recalling the hookup. “The person said that he was so f—– up that he wouldn’t even remember,” Frankel explained to Carole Radziwill and Ramona Singer. “He and her partied like crazy.” And this wasn’t just conjecture – there was photographic proof: “I have a picture of him and the girl making out,” Frankel said, dashing Radziwill’s theory that the man involved may or may not have been Tom. RELATED VIDEO: Countess Luann de Lesseps Spills Her Wedding Deets – Dresses, Serenading and Bachelorette Party! Predictably, Radziwill and Singer were shocked by the allegations – which came minutes after the New York Housewives met up with Frankel in Miami for the continuation of their Florida vacation. “I never expected [Bethenny] to tell me that Tom was making out with a chick at a bar at midnight two days before the engagement party,” Radziwill confessed to viewers. “I don’t even know what to think.” “I’m not liking Tom right now,” Singer said. “I don’t think he’s such a nice guy, as I’ve been saying. A nice guy wouldn’t do that.” She continued, “This to me is very upsetting. Here we are celebrating LuAnn’s engagement to Tom and all of a sudden we find out he’s a piece of s—? Yeah, not good.” D’Agostino, Jr.’s motives were also called into question by Frankel’s source. “I’ve heard he’s not really wealthy on his own,” Frankel said, of the rumors. “He’s got a family sort of name but he himself isn’t very wealthy. And that he dates only wealthy women and that they pay for everything.” RELATED VIDEO: Countess Luann de Lesseps on Bethenny Frankel – ‘I’m Marrying a Single Man, and She’s Actually Dating a Married Man’ The question then became whether or not Frankel would tell de Lesseps about the alleged infidelity. “I’m not her best friend,” Frankel admitted. “I don’t want to know one third of the things that I know. I know it’s true. It’s a fact. I honestly don’t know what to do. And I want to have my superficial friendship with her.” Both women encouraged Frankel to say nothing. “She was really happy,” said Radziwill – in an effort to protect the Countess. “You have to say nothing.” “Can I abstain?” Singer joked, when the idea of a vote was brought up to decided if Frankel should say something. But Frankel appeared to feel the need to address the information directly with de Lesseps. “I have to tell her,” she explained. “I shouldn’t be telling you and not her. I would want to know.” The episode then ended with an ominous “To Be Continued …” RELATED VIDEO: Countess Luann De Lesseps on Her Ex-Husband – ‘Would I Have Liked the Marriage to Last? Absolutely’ Oddly, it appeared Frankel was prepared to address the accusations directly with de Lesseps earlier in the episode as the Countess showed off her engagement ring. Frankel asked her longtime frenemy a series of questions about her relationship with D’Agostino – many focused on whether they are monogamous or whether they had “a different type of European relationship” like the one de Lesseps said she had with her ex-husband, Count Alexandre de Lesseps. “What do you mean monogamous – we’re getting married!,” de Lesseps shot back. “If we didn’t want to be monogamous we wouldn’t be getting married.” “Just make sure you’re 100 percent sure,” Frankel responded. “Because I’ve been through an ordeal and how do you know you can trust him?” “I know him – I know Tom,” de Lesseps said. “He’s my soulmate.” She told viewers: “The way that Bethenny is asking me these questions is not sitting with me right. It makes me think that she is up to something. She’s not being mean. She’s not being argumentative. She’s just being coy.” To be continued, indeed. The Real Housewives of New York City airs Wednesdays (9 p.m. ET) on Bravo.