The sound of you sleeping

As he signed the documents I'd passed him, Mephisto looked up over the top of his glasses at me and asked, "Are you okay?"

Usually, when he comes back from a trip, he'll ask how I'm doing, and, as you would to any stranger/acquaintance who inquired, I always say, "I'm doing okay."

But today's "Are you okay?" - I'm not sure whether it's the question or his tone - it's a little hard to explain why I felt, at that moment (tired, achey, and dizzy), that was prolly the sweetest thing he's ever said to me.