Paris Hilton and Doug Reinhardt split... again

Paris Hilton and Doug Reinhardt have called it quits again, UsMagazine.com has learned. "The relationship between Paris and Doug is over," her rep tells Us.

"She broke up with him more than two weeks ago." The two began dating early last year but split last June. About a month later, they got back together. At the time, a source told Us: "They are definitely happy again."