Azula never received a visitor. Zuko had all but abandoned her to the desolate room; her screams terrified other prisoners until she was gagged. The burns on her cell only ceased when the chi shackles were placed on her wrists, inhibiting her.
The feeling brought back memories, painful recollections of the freak, the circus clown, and extending further and further as Azula fought to ignore it. She didn't want to remember, to know or imagine.
The only time she ever felt the need for company, and she was so removed from society that even the guards barely showed their face.