Even if he didn't know what it was, he was aware that something was wrong (something beyond finding herself stuck in an underwater prison, that is) but he didn't push. What he did do was wrap his arm around her shoulders when she came out and give her a quick squeeze.
"Well, I could have a word, see if I could get them to waive the riff-raff rule in your case..." he drawled, with a grin. "ACtually, I should think they'd be glad to have you. I don't know exactly who've they've got on the team, but I don't think anyone's mentioned any doctors yet, so I'm sure they could use you in that capacity if nothing else!