Hunni, your Dad always seems to know what things to say to try to get you to do what he wants you to - to move to be with him. You have the choices to make as to whether you want to see him, or your grandmother, or not. You've said in the past that you think that if you were to go to his house then he would make it difficult for you to leave and he'd try to make you sell your home and move in to look after him.
You've also said that he doesn't treat you very nicely at all...

It's your choice, but hunni you've had times when your family/friend haven't said nice things about you or to you. It's time to live your life and to go where you want and do what you want!