What do you mean, it's not regenerating as quick as it should?

[ The nuances of angels are beyond him - he barely understands what Cas' Grace is, let alone how it truly functions. ]

How can it not be regenerating? Why can't you get it up?

[ He talks as he moves; the first aid kit is still on the nightstand where Dean left it, resting next to the beer he didn't finish. Dean reaches for it, pops it open, and rummages for a fresh bandage, more antiseptic. ]

I'm not leaving you. Either we stay here, or I haul you into the Impala and we go together.