Does he really hate her ??????

Well, there's this girl in school and her name is Cara, there's this teacher in school who is her form teacher and his name is Mr Dorian, and Cara is always rude and nasty to Mr Dorian and he always shouts at her, but other days she says ''aww hes great looking'' and then other days she says ''he such an ugly freak'', people think that Mr Dorian has a little 'crush' on Cara, Mr Dorian always gives her detentions and lines, does he really hate her ???