I've given up on the show, and am re-reading the comics, starting with issue 1. It's my second re-read, and I'll be going up to the latest trade paperback.
I couldn't get over how freely and constantly the group was expending ammo.
I also had a hard time with Lori, but rereading the comic and she's just horrible there as well. She's bossy without understanding what she's demanding, and resentful and unsupportive. Hey, girl, you married an authority figure; why are you always trying to undermine him?