His Immense desire for her

Jade Thompson was out in the night to hide away from her stepbrother who was lusting after her. By the big rock, she witnessed a murder and then the murderer surprisingly shoves into her once not so perfect life claiming he wants her.

When she thought she could escape him, she murders her brother and is forced to go with the murderer who wants to take her with him but only when he resurrects the corpse of her brother.

What if she asks him why he wants her and he nonchalantly says 'I don't know'