Starcross'd lovers, just as Shakespeare writes in Romeo and Juliet.
Perhaps opposites do attract. You fell in love with Arabella's natural charm, no hypnotic serenades and all.
But you're a merfolk— how could you end up with someone like her? Her species is dangerous, no?
As much as you wanted to proudly hold her at your side, society abstains that. Abstains abnormalities like your steadfast relationship.
She's content with keeping you and her a secret, but at what cost for your dignity? Things like this never end well. They particularly end in tragedy, and it terrifies you.
Arabella easily senses your worry, she places her hand on your cheek and drawls her thumb over it, attempting to soothe you despite how feeble she was at comforting.
"Stop worrying so much. It pains me too, you know." She says softly, shuffling herself closer inside the hiding spot the both of you found together.
"I don't like it when you're sad." She then adds, trying to lighten up the mood a little. She's really hoping that this works.