Entertainment TV Ramona Singer's Husband Mario Spotted Arm in Arm with Gal Pal Days After Split Mario Singer and Kasey Dexter looked "flirty" at Bridgehampton bash, an onlooker tells PEOPLE By Michele Corriston Michele Corriston Michele Corriston is the Director of Platforms Strategy of PEOPLE. She has worked at PEOPLE since 2014. People Editorial Guidelines Published on August 11, 2014 08:00 AM Share Tweet Pin Email Photo: Rob Rich/WENN Just days after Ramona Singer announced that her marriage is over, the Real Housewives of New York City star’s estranged husband, Mario, hit the Hamptons scene with his alleged girlfriend. Mario Singer and Kyle “Kasey” Dexter looked “very flirty” at the Women’s Health Party Under the Stars in Bridgehampton, New York, on Saturday night, an onlooker tells PEOPLE. The two were also photographed together in Sag Harbor. Ramona, 57, first filed for divorce in January after she reportedly caught Mario cheating. Still, the couple (who are parents to 19-year-old daughter Avery) reconciled shortly after. “All marriages hit bumps, some bigger than others,” the businesswoman told PEOPLE in April. “We have a history of 25 years together and we have been very happy.” But on Thursday, Ramona Tweeted that they had split again. “I have decided to move on with my life without Mario. I tried my best to make my marriage work. I am excited for the new chapter in my life,” she wrote in her post. Ramona Singer ‘Decides to Move On’ from Marriage – Again It looks like Ramona is also enjoying some beach time this weekend: The Pinot Grigio mogul Tweeted photos of her relaxing time with gal pals on a boat and hanging by the pool. Want more stories like this? Sign up for our newsletter and other special offers: sign me up Thank you for signing up! Inside Scoop: Ramona Singer Files for Divorce