[Max the Man]

I think that she reversed because in X-2 she didn't have to worry about saving the world. Y'know?

Like, in the first one she was worried about Yuna obviously and about Sin and Tidus and everyone since she knew that if everything worked out either way, someone was going to die. But she did what she needed to do.

In the second one she was more carefree because all she had to do was dig in the dirt and hope to find something round and made of magic.

And then she maintained the goofy disposition even during Vegnagun and everything because she was like "I already beat Sin, what's a big machina gonna do?"