Ashlee had been drinking, and the pair continued to argue heavily when they left the venue. "Ashlee came up completely wasted and yells at him to leave. They fought, she told him he was horrible in front of a whole group of people and made him leave his own party early. So they make a scene and leave the bar," Contactmusic quoted a source as having told celebrity blogger Perez Hilton.
It is also believed that the star became irate when someone took a photo of her leaving the club, and she demanded they deleted the images.