The girl is back. In equal parts, Azula wants her there, and wants her gone. She wants comfort, yet she wants to be left alone.
Lin can tell there's something wrong. She can feel it in the air—see it in the other girl's eyes. She has to be strong, because Azula is trying; trying and failing. She thinks, in that strange, nonlinear way a six year old processes things, that Azula is similar to her mother.
Toph can't let other people see her as weak. She broke out of her cage.
What about this poor girl?