Regan manages a small smile in return.

It fades, as she watches him walk away, moving too carefully, like an old man. As she watches the bathroom light slide on, dim at first and growing brighter, and the door close.

Regan pulls her knees up, settling back against the headboard, and rests her arms on her knees. She lets her head tip back to rest against the wall -- the leaden exhaustion is seeping back -- and closes her eyes, and tries not to think.