Like rufus T firefly said, I also think Rick snapped way back in the prison on the phone after Lauri died and he's never been the same again. But there were periods, post prison, that he does save the day with quick decisions, like when Carl was about to get raped and Rick ripped that lowlife's neck. and when he repelled the governor from attacking the prison the first time. but then he made some bad decisions. It goes to show that Rick, being human, and vulnerable, and shouldering some form of PTSD, is doing the best he can in a hellish world. Negan on the other hand, got to Rick from day one. There's nothing worse than psychological games and Rick, being susceptible, broke. That's probably why, through all that "I'm going to kill you" bravado, he still looks shaky and unsure. Now it looks like he's hellbent on revenge for the death of Carl, regardless of what Carl told him before he died or what he wrote in the letter. On another note Morgan's PTSD has surfaced big time. I wonder of the prison Morgan built will be put to use. In the trailer for next week, we see the priest on his feet. I wonder if he's going to have another conversation with Negan. This episode reminded me of the early episodes with good back and forth dialogue between characters. What I would actually like to see is a Negan backstory episode. Just to see how he was pre-zombie.