"Ariel, don't go to the surface."
She goes to the surface.
"Ariel, you can't love a human, he'll kill you, now let me destroy all your human things"
She swims away and becomes human.
"Oh, look, she does love him, here, you can be human."
Ariel is human again, marries the prince, and gets her way. And she does so by going against all her father's wishes. The entire series was like that too. "No, you can't have that whale, no you can't ride that seahorse, no you can go to Eelectric City, no, you can't have human things, no you can't let a sea monster live here."...No matter what, she NEVER listened to him, but at the end, her father was always looked wrong and she looked always right.
