She was arrested earlier that morning in a domestic dispute incident with her boyfriend, Praveen Chandra.
More details are coming out now, and it seems that Celeste kicked Chandra in the face after he choked her and grabbed her arm.
Celeste, whose real name is Arianny Lopez, isn't just another pretty face, she's apparently a pretty tough chick, as well.
From the Las Vegas Sun:
Lopez told police her boyfriend choked her and grabbed her right arm during an argument about text messages, the reports said. Officers noted that Lopez had scratches on her right arm.
Detectives interviewed Chandra who said Lopez kicked him in the nose in a limousine, where the argument started, the reports said. The argument escalated in the hotel room, at which point Chandra accused Lopez of throwing two vases at him, police said.
It looks like they might need to spend some time apart and cool off a bit.
For the record, UFC president Dana White has said that he and the UFC are supporting Arianny in this matter.
Here is Arianny's mug shot: