Imagine if the reason Katara ends up becoming the best healer in the world despite clearly prefering to focus on more combat based waterbending was simply because she spent her life with the avatar. An avatar a lot of people hated and an avatar who probably regularly ran into bad situations. She probably had to heal him a lot, and probably in a lot of different situations. She accidentally becomes the best at healing because she ended up marrying the most death-defying person.
This both makes me sad because of the inherant angst but it's also hilarious bc like, she's got to be so done with that bullshit at somepoint. Aang gets stabbed for the 15th time in their lives and she's just like "gdi again? Really?" Not worried at all because she's done this so many times before and Aang's just like "haha 😅 have I mentioned lately that I love you and you're the most amazing person I know?"