The writing and the actor's performance points towards a heavy load of guilt, first because of Lori and now it's just gotten orders of magnitude worse. Of course none of this is being spoon-fed to us, a la broadcast TV. I'm continually grateful for a series that trusts me to figure these things out for myself.
Anyway, that scene where Shane stares at his "evil" reflection in the foggy mirror is getting perilously close to spoon-feeding territory, especially since they showed that sequence twice
. I'd prefer if they back off a bit and make things more