Really? [She seems somewhat surprised.] It's a rather simple question, isn't it? I don' think there's a bad answer for something like this.

Oh no, I don't mind at all. I'm... well. [She looks a little awkward, because wow, it's been so long since she told someone outside of her friends who she really is, but... hey. She never seriously tried to hide it, so...] I'm the queen of a small northern kingdom named Arendelle, in my world. So I'm sure you can understand why it would be a bad idea to stay here when I'm finally given the option to stay or return home.