Amy things are not getting any better, I know you must feel like you are alone and living a nightmare, you desparately need your Dad's love and support and he is not capable of giving it, you have no control over the situation.  While your Mum is in this state, you still have your own family to nourish, and that has to be your priority.  Don't let your Dad push you away, keep ringing him, at the end of the day, you have to live with the decisions you have made.