He looks at her when she speaks, surprised to find she's looking at him not Rey. He doesn't look away, even though he still hasn't stopped moving around. He also knows immediately what she means when she says she hates this, and he knows he does too.

Just like he knows she's right. They don't deserve Rey and all her goodness. Cassian looks at the tiny face of his daughter and his heart aches. He loves her implicitly, but the entire circumstances of her existence are terrible. He's terrible. He'd agreed to the mission in the first place. The same hands that are holding this baby are the ones that killed an Imperial barely two weeks ago.

But the thought of someone taking Rey away has his grip securing around her, like they're going to burst in right now. His voice is stern, a quick break from the humming. "No one is taking her from us." Cassian isn't sure what comes of he and Jyn when they're free of this, but he isn't going to give up Rey for anything. "Maybe she does deserve something better, but she is mine and yours. I won't let them. She does not belong to this life, but she does not belong to the Alliance either."