After a stormy, and violent, holiday trip to Miami, Lindsay Lohan and Samantha Ronson have called it quits, Radar reports. LiLo has since been on the Los Angeles scene hitting on both sexes and proclaiming her single status. Though the Florida fistfight that led to the split has been denied, sources close to the couple say it’s true—and just the tip of the iceberg. (More Lindsay Lohan stories.)