It was time to check on her prisoners at the Boiling Rock. She had brought Ty Lee and Mai, and of course Mai couldn't go anywhere without her boyfriend. So Zuko came along too, and Azula decided to reunite him with the Kyoshi Warrior. If she remembered correctly, and she was positive she did, Zuko had burned down her village.
It would have been interesting, but she and Ty Lee were visiting some Earth Kingdom warriors that, it seemed, Ty Lee had taken a liking to. Mai had been dragged away by her uncle to discuss family matters, so she left Zuko at the door and told the guard to let him in.
No one really knew what happened in the cell, as no one could hear through the thick iron walls, but Azula thought she saw a salve and roll of bandages in Zuko's pocket. And after her brother's visits, she thought the Kyoshi warrior looked brighter.
She didn't know what Zuko did, but when Azula mentioned that her brother had gone off, far from the prison, and that she shouldn't expect any more visits, a brief look of sadness crossed Suki's face.