Hamlet loved Ophelia?

I dont think Hamlet really loved Ophelia because if he really did, he would not call her a whore and treat her the way he did. He just wont stop insulting her by calling her a whore and making her feel bad about herself and also her father. And so, if also he was just "pretend-crazy" then why won't he choose to be sane for Ophelia if he really loved her. So I dont think he really loved her or else he would'nt just throw the love away.