If Kengo was going to say that, then it really would be rude for Ryusei to leave. Not that he was obligated to stay here, but was it suspicious for him to be here in the first place? Ryusei decided to call him on it. "You don't look fine."

Ryusei was still too keyed to possible relapse; no one knew what had caused Jirou to collapse, really, and modern medicine wasn't that good if it couldn't figure out what was up with Kengo. It was safer to get someone to check. But Kengo had had to live with it; Ryusei's interference wouldn't be anything but unwelcome meddling, if Kengo had it under control. "Are you sure...?"