Mary-Kate Olsen is reportedly dating Olivier Sarkozy, the younger half brother of former French President Nicolas Sarkozy.

The pair was spotted in the Hamptons over the weekend, and sources tell Page Six that they've have been seeing one another for about a month. They're reportedly "head over heels" for each other.

The 42-year-old French businessman, who's the managing director of the Carlyle Group, a private equity firm with its headquarters in Washington, D.C., was dating artist Julian Schnabel's daughter, Stella, for about a year before they split up in March. Mary-Kate has been relatively single since she ended a two year relationship with artist Nate Lowman in 2010.