He lets out a breath, soft and almost amused. Grantaire has done nothing to escape the swift onset of his concern, but there is little to be done for that now. He could tell Grantaire how he grew up serious in all things, how every day was the same, how he only barely knows how to attain playfulness without alcohol to knock his control from his grasp. He doesn't, though -- he nods, and then he dips into a bow. "Thank you for the lesson."