It was awkward for Snape to be in the same room as the Dark Lord, the wizard not being "his" Lord any longer. Voldemort did not share that concern. He chose a book from the vast collection Harry had assembled and claimed an armchair in front of the fireplace. His only concession to the situation was him turning the chair around to watch the recovering teenagers. Not knowing what to do with himself, Snape debated leaving for "his" guestroom or staying to make sure that the blasted boy would wake in the morning.