How would you treat someone if they did this to you...?

Just appease me and answer to the best of your knowledge... You were living with someone and they could read your mind and it was as easy as talking to you. They knew all of the personal details of your life including all your old dirty secrets from the past and any dirty embarrassing thought that might be running through your head at any moment. The are vocal about the things they know about you and they look down on you because of the things you think about. how would you treat this person?