I am very glad I didn't watch this episode. Did the writers really need to go there?
Ugh. Yes, they did. If the show isn't going to be an orgy of zombie killing every week they have to explore what happens when the people that are left are unstable, potentially threatening other people and/or scumbag gangs (the dudes that Daryl hooked up with).
I applaud the writers for going there. I'd like the show better if I knew there was a legit possibility that every single character could get killed.