The simplest way to put it is that it's cruel. Against all logic or reason, you and Dinah — a villain and a hero — had fallen for each other. In the midst of battle, Dinah's pained cries made you unable to hear, and now, all for which you yearn is to listen to the songbird sing once more.

You sit in your cell, staring at the walls. There's not much else for you to do until Dinah decides to visit.

"I'm sorry," she signs. She's been learning for you. Dinah made you fall for her, took away your ability to hear and then locked you up. The very least she could do is learn how else to communicate with you.