Ramona Singer, co-star of the Bravo series “Real Housewives of New York City,” enjoyed a sunny Memorial Day in the Hamptons at the Avenue on the Beach Magazine party at Circo in Southampton. Looking fabulous in a white tee and skinny black jeans Singer seemed to be enjoying her new single life since announcing very publicly her divorce from husband Mario Singer. The blonde was spotted chatting away with her girlfriends about exciting upcoming ventures. Singer has a new book “Life On The Ramona Coaster” coming out at the end of July and will be making an appearance in East Hampton at BookHampton for a signing. In a related story, while on “What What Happens Live” with Andy Cohen this week, Bethenny Frankel, now back on “Real Housewives of New York City” after a hiatus that included her own spin off and daytime talk show, said “Oh my god, I’m on the Ramona Coaster” when Andy asked her about the season and her life since her divorce. We wonder if the New York Times bestselling author got a sneak peak of Ramona’s new book.