He's relieved that she doesn't have to feel the pain of the bone being set, and that she falls asleep. She won't die. She will be okay. She's a strong woman. This won't phase her for long.

For a little while he's nervous that the nurses will ask him questions or bring in some kind of investigator, but they don't. They let her sleep because she obviously needs it. It's late, too. If there is an ordeal with the law, it will come tomorrow.

He holds onto her arm still, watching her as she sleeps. Eventually, he sits back in the chair and nods off as well, his head falling forward and to the side. Periodically, he wakes and gazes at her for a minute before falling asleep again. Until he wakes and she's also awake. He leans forward again, his hand going back to the uninjured part of her arm, stroking it gently.