You said the characters received mental torture. I think I the viewer was tortured too. That was brutal. I'm still shaking and crying. I feel like I went through it too. I have half a mind to not watch again until I know Rick has killed Negan.
Seriously? Other than a bit of impending dread as it was happening (was kind of scared there'd be a third), I felt nothing.
Negan probably won't be going anywhere, especially anytime soon. Having him pay for it would ruin the story. He will be captured, but no further punishment. Morgan's jail needs to be useful.