Curtis has told her before that he doesn't feel safe anywhere. That it's not her fault, or anything she is (or isn't) doing; it's just the way things are.

Sometimes he gets close, though. He forgets, like he's forgotten so many other things -- but he forgets for an instant that he has to be afraid.

His eyes are closed, and now Joanna lets hers drift shut, too. There's no need to be watchful. There's just this, a perfectly contained moment, and a peace long absent from his life.