[That...sounds like something Valentine would do. Possibly not the banishment but close enough. So he guesses he just wants to tell Zuko that he gets it. Only...he doesn't know how.

So he shares.]

He gave me a bird once so I could train it to hunt. I spent hours training it and caring for it. I loved it and it was loyal to me. When I had it trained, I brought it to him. He snapped its neck and told me that I was to train it to be obedient and what I did was train it to love. That to love is to destroy.