right? he is SO obsessed with her. leave her alone, dude, get a job. it makes sense though - i think he projects both himself and Caleb onto her. he sees her as another wayward human who can validate him and who he can save, and if he can save HER, then that means he could have saved Caleb, and that he was and has been right to do what he's been doing... and the more she refuses to see things his way or go along, the more furiously he tries to FORCE her, for her own good, because he's tied so much of his own self-perception into it all. the man is very unwell.