Speaking of couples, wasn't Ozai feeling sad after he had to banish Ursa? I think that was the only time he showed his (non-evil) human side. I also remember Zuko saying they were all happy in the past. I really wanted to see Ozai's story and thought he should have been a little bit more than a final boss type villain.
edit: I wasn't really sure why he had to banish her. It seemed like no one in the kingdom knew that she killed fire lord Azulon so what was the point of sending her off?
edit: I wasn't really sure why he had to banish her. It seemed like no one in the kingdom knew that she killed fire lord Azulon so what was the point of sending her off?