The possibility that it could be gone after you've died once... it's tempting. But he's more concerned about anyone who has already contracted it, because he's just doomed them to all of this suffering that just gets worse and worse until it finally destroys you. And what if it isn't gone when you come back? What if it just starts all over?

He shouldn't have been brought here.

"So what should I do?" He asks nobody in particular. Maybe it's directed towards Tim, or some... higher force or whatever that exists in this place.