Gaius looked up into Harry's face, managing a weak curve of lips that wasn't a smile, exactly, but at least an effort. "Thank you, Harry. I'm not... I'm not handling this well, am I." It wasn't a question, and Gaius shook his head. "I should be taking care of you, not having you worry about me. But... later, yes, if you don't mind. I can't... I just can't do it right now."
He didn't tell Harry that he wasn't certain he ever could.