[The ignorance of humans will never cease to amaze her, even if she doesn't want to admit that it's because she's bad at communicating and because, you know, he's not a mind reader. But it's fine, because Oona is brutally honest and has no qualms about laying her story bare to make a point/make someone uncomfortable.

She tightens her arms over her chest and tilts her head up defiantly.] Course you do not. Want to understand? Will tell you. Had tail, a beautiful one! Was kidnapped by humans from my home. Removed tail and gave myself legs to escape, but they found me again and took my tail. Cannot change back without tail-- so, my tail was stolen.

[Oona scoffs] Do you know nothing of mermaids? [WHATEVER] Understand now? Tch! Humans are always the same. You do not know when to quit poking and prodding!