This is idiotic. She is just constantly being left on and then rejected by him. Girl, get some self respect.
Also, why is she even in love with him? Even cliché shojo have somewhat of a plot where the guy saves the girl and she keeps remembering it or something but this guy was a pervert to her from their first meeting . He keeps saying he wants to save her from the other guys but he is doing the same thing to her. He never did anything good for her to fall in love.
So if this is just lust then girl needs to move on. Lust over your arranged husband or whatever