I don't hate Lilly, I like her. She's just in the wrong role. She's not a leader but rather a boss and her biggest, and I think only, supporter is now taking a dirt nap. She seems to be backing away from a control approach to working with the group approach. Of course in the preview to episode 3 she's back to control mode.
Her comments seemed harh and aimed at Kenny which seems understandable (the monster comment about ruining people's lives) but I was suprised as well that she did not want loot the car. I figured she had a rough day and just wasn't herself.