He's just dumb if he is proposing to sell kidney and to be sex worker. He will eventually corrupt you or cause any other trouble with his way of thinking. I dont think this "duality" will be any good to you. Maybe you are just wasting your life with him, maybe you should find different friends, who would help you with your career, get you new skills or new opportunities. They dont need to be duals, the comfort of the chit-chat is not the most important in life.