As she counts down to the premiere of her talk show, Bethenny Frankel tweeted on Sunday about dating topics the same day that she went out to lunch with a mystery man in New York City.

Her nationally syndicated talk show, Bethenny, premieres on Monday, Sept. 9, on Fox. The former Real Housewives of New York City star tweeted on Sunday about a "good show topic," saying, "When u speak to men they want to know how to date several women. Women want to find one man."

In response to a comment written by a Twitter follower, Frankel then wrote, " 'sex, lies & videotape:' men learn to love women they're attracted to. Women learn to be attracted to the men they love.' "

Earlier in the day, Frankel went on a unidentified male friend for lunch in the Big Apple, Daily Mail reported. The 42-year-old looked wore a white tank top, cream-colored shorts and matching open-toed shoes. She paired the ensemble with a long-chained necklace, black-tinted sunglasses and a blue handbag. She smiled as paparazzi photographers followed her to a local eatery, where she met up with a bald friend for lunch.

See photos here.

Her outing came days after she was spotted with hedge fund billionaire Warren Lichtenstein., 47, in Saint Tropez. They vacationed together and were photographed on July 18 walking side by side. A friend close to Frankel insisted that she and Lichtenstein are just close friends. She reportedly leaned on him to help her through her difficult divorce from Jason Hoppy, which is still not finalized.

The Skinnygirl mogul filed for divorce in January 2013. She married Hoppy, a pharmaceuticals executive, in 2010 while pregnant with their daughter Bryn, now 2. Earlier in July, she tweeted that the strain on her marriage has her "hanging on by a thread."

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