He just makes a rude noise back at her, because he knows he's not. "I'll live, is the important thing," he tells her, and that is honest. He's not going to die or even collapse before he fulfills his promise and gets her out.

He'll worry about himself after that.

"Wanna risk trying the stairs?" He's leaving that decision up to her, based on what she knows of James and his skills. The other people should be out of the hotel by now, and he glances over his shoulder, catching the reflections of emergency lights. "We might have a different kind of company soon."