Lennie kills Curley's wife by shaking her so hard that her neck breaks -- remember, he is a big strong man. She is yelling because he is holding on to her hair and won't let go. She was very pretty and simple, and her face was sweet and young. Lennie was so strong he broke her neck. Steinbeck is making us feel pitful for her because she is lonely. Curley's wife allowed Lennie to touch her hair and couldn't stop. He does not kill her on purpose. Lennie was a murderer; he didn't do it on purpose but he had killed a woman, he broke her neck. Later, Curley’s wife lets down her guard alone with Lennie in the barn, talking to him about her broken dreams, eventually trusting Lennie to touch her hair and dying tragically in her moment of vulnerability. Curley's wife lay with a half-covering of yellow hay.

First, Curley’s wife insists on talking with Lennie even after he warns her that he “ain’t supposed to” … It wasn't a police force coming for Lennie, it was a mob. While Lennie’s mental capacity is limited, he committed murder in that barn and he probably did the same thing in Weed.Curley’s wife seeks out the companionship of the men in the only ways she knows how, through blatant flirting and through callous threats. Lennie was obsessed with soft objects. She's a tease, leading guys on to make herself feel better. Curley's wife's obsession with herself ultimately leads to her death. And the meanness and the plannings and the discontent and the ache for attention were all gone from her face.

This is not so much due to Lennie’s slowness but more because of George’s protective nature, preventing Lennie … He is only shaking her like that because he wants her to stop yelling. Lennie responds absently with concern about his dream farm and the rabbits he will have. Why is Lennie angry at the dead puppy? What happened to Lennie’s puppy? Mice -- Lennie killed mice that his Aunt Clara gave him when he was a child. Despite Lennie’s remorse, he does not grasp the severity and the consequences of his actions. Why did Curley’s wife come to […] Yes because I don't think so George was left with any other option. It's not a coincidence that that she ends up dying because she didn't want Lennie to mess up her hair: look, and even touch if you want—but don't get too comfortable. He’s sad and he’s angry. She says ‘I don’t like Curley. He aint a nice fella’, this tells us that she doesn’t like her marriage and she is intimidated by Curley. As a result, he shook it and broke its neck.

She's half-afraid of Lennie, but she also wants his attention and praise.