Damn. Somehow I thought Rei is fine being Spider-chan's caretaker/partner/object of desire.
But then again, he clearly wants to live. His reason is deeper than simple self-preservation. So if being with a spider monster girl who at this point just wants to love him and be loved is a threat to his life and sense of humanity, then he might be forced to... kill... that... deceptive bundle of wholesomeness?
I feel conflicted ngl. I swear, he might do something he will definitely regret.