Rey wanted the answer to her question. Why not kill her? Why instead take her as his own and try to do this to her, for her? She wanted to understand his thoughts and tonight felt like the first time she was, at least a little. The monster was more of a man for the first time.
Rey was surprised that her hit had gotten him. Her smile was almost predatory for a moment as she pushed him back, her magic forming a grip around his wrists and holding him to the tree as she stepped towards him. There was a sudden thrill of power that flooded through her as she was the one in control. "You will call me by my name"