@Wyrm doubt about the influence of the other guy, remember that he raped the MC when they were friggin kids. He is warped af, and most likely that he didn't want to share her with the world, so genuine feelings I wouldn't call them.
poor girl, thing is... if she got out after this, she would probably try to kill herself, the question is for the MC that he got surprised, probably was expecting her to be like him.