He sighs at her initial answer, but doesn't respond till she asks a question of her own.

"Most spirits...would leave me be..." Other spirits and magical creatures couldn't possibly tell if a werewolf had been wounded by silver, and their ability to regenerate from normal wounds is well known.

"...But...if you weren't..." His breath fails him, sending him into a coughing fit - which makes him grimace in pain as his ribs expand and retract under the bandages.