He knew Zuko was right about Jet, even if he didn't want to say it out loud. There were many troubles inside of his nephew's head at the moment, and being responsible for yet another one did not make Iroh feel very good about himself. Perhpas later when Zuko was asleep, he would have to go for a walk and see what he could find out what became of the young Jet. It would not so to have another enemy to fear in a place where they were already on uneven ground.
He flashed Zuko a grin in response to the glare he was being given. Always he was looking out for his nephew and keeping his best interest at heart. As far as Zuko seemed to recognize, he was just a lazy old man with a love for music and tea. It was better that way. He didn't mind the cutting comments from time to time, or even the inability for Zuko to say he forgave him. He knew his nephew loved him. Just like he knew the younger man did not know how to express love properly. Only one who is shown love and give it to someone else.
The grin faded as his mind wandered, his expression growing uncharacteristically grave. To Iroh, the Avatar was no longer a matter of concern. What worried him was Azula, and he obvious need for power and destruction. Her defeat at the great outer wall of Ba Sing Se would not be the last anyone heard of her. If he knew anything about his niece, it was that being beaten only made her more determined to prove she would be the victor in the end. And where would that leave Zuko?
He watched Zuko with the girls now, absently and only half paying attention. He would be happy to stay here, Iroh would. This was a good life for him, but his nephew was unhappy, and that made him unhappy. Perhaps if he found someone to open up to a little, to share some time with, a special young woman, he could get something of a new perspective. It was a lot to hope for, but hope he did.