A Bravo star has been busted…

Real Housewives of New York City star Kelly Killoren Bensimon was arrested last week on charges that she assaulted her estranged boyfriend.

The 40-year-old reality personality’s boyfriend Nicholas Stefanov told police that Kelly punched him in the face, causing a laceration below his left eye.

She turned herself in on Thursday and was slapped with a misdemeanor charge of assault.

“Last week, Ms. Bensimon was charged with a misdemeanor and has entered a plea of not guilty,” says her attorney. “We are confident that the charges are unfounded and we look forward to a quick resolution.”

Kelly is due back in court on March 31.