Gerard took that in stride, partially because he was already turning over what Adam's behavior might mean, and partially because he was used to it by now. Nobody liked being asked questions by an Auror, even if they were a friend. Was Adam his friend? He really had no idea. Probably not. Maybe? Whatever, not the time to think about that.
He resolved himself to ask questions from the hallway, since Adam seemed pretty determined to drive him off as quickly as possible. "When did you start feeling sick?" he asked, already taking mental notes as to Adam's physical condition. He looked a little drawn, of course, but otherwise not too bad.