Responses
Zuko wanted his father's live while Azula wanted her mother's love. Zuko lost Ursa but had his uncle to mentor and guide to right path while azula also lost her mother and didn’t have anyone by her. Ozai always saw her as a weapon. Never his child. So ofc she gonna be jelly. Zuko lost one but gain another while she only lost. Never a gain. Never a trusted adult by her side.
Ok, this actually makes sense considering Ozai was an evil guy. The spirit makes sense since the spirit world is a world somewhat like Aang's. What doesn't make sense is why Zuko's sister was a jealous witch.