Let's see, husband beat to death in front of her with a barbed-wire baseball bat and she's left a widow in a post-apocalyptic world. Angry seems just about right to me. In the real world, she would still be numb after 10 years of intensive psychotherapy.
Just caught up on the last three episodes. I'm hanging in there, but the Saviors storming Hillside with a group of archers against sub-machine guns was pretty ridiculous. And Rick spraying machine gun fire all over, but never hitting Negan once was very implausible, as well.