Bynes's rep Melissa Raubvogel tells PEOPLE exclusively, "I can confirm that Amanda broke up with Doug."
Last week, Bynes, 22, was visibly upset while at the GBK gifting suite in Los Angeles and was telling people they had broken up, according to a source.
But it might have been a rough patch, since the pair was spotted hand-in-hand Tuesday night when they popped into Swingers in L.A. for a late-night bite. "They looked really happy," a witness said.
Separate PartiesOn Wednesday night, the couple partied at separate hot spots. Bynes was seen at Guy's Lounge with some girlfriends and a unidentified guy who never left her side, a witness said. Reinhardt, who is a Hills regular, was seen dancing with a bevy of ladies at Crown Bar, and even kissed one of them.
A source close to Reinhardt said, "Doug is so over being with her."
But a source close to Bynes tells a different story, saying that on Thursday morning, Bynes went to his house and demanded her stuff. "[She] stormed out saying it was over and she was done," says the source.
Reporting by ULRICA WIHLBORG