Derek isn't sure what he expected, what he hoped for, but when she responds he finds relief welling in him so hard and fast he almost sighs to let it out. He's glad that she replied that way, not merely because it means she's joining but because it means she's accepting, that he's done enough.

He returns her nod.

"Okay. Good. That's good."

He presses his lips together, suitably ashamed by his reply. It is not difficult to remind himself that she's the only family he has anymore, really - the thought is constantly skirting along the edge of his mind when he thinks of her. So he pushes himself. Makes an effort. Looks at her again, and says, sincerely:

"I'm glad."