Also, about her reckless behavior on fifth heaven and about wanting to go to the demon sea, her parents are actually responsible for that as well. She has always been protected and kept totally in the dark about anything that could even be remotely dangerous. So she could never build up any experience and build up a sense of danger. Even now she is, in a way, still protected by her overly strong cultivation technique and dharma treasure, so going around and robbing people on fifth heaven is more or less a game for her and she just doesn't realize the consequences.