one sentence is a metaphor, suggesting that the person's head is resting in the crook of the other person's neck whereas another sentence is a contradiction because it suggests that the person's head is moving, which would mean that it is not resting.
Consider the staetement "My head moved in the crook of her neck.". Based on this statement, is "My head lay in the crook of her neck." a true statement? Yes/no/unknown