Work Text:
People everywhere claim that she and Aang are soulmates, she claims it herself sometimes, wishing that she believed it. Yes they are in love, but she doesn’t feel that they connect on a deeply spiritual level.
The only person she feels that ever connected to her on such a level was Zuko. He understood the darkest part of her – truly understood – and allowed her to be sad and miserable and angry, their search for Yon Rha being the first time.
Katara may be in love with Aang but she truly believes that she and Zuko are soulmates, love or not.