GypsyGirl_1963: Living this horror myself, I know it hurts that a father doesn't want to be accountable for his actions and the only one that suffers in the end will be his son.
Life is to short to worry about the father when or if ever he'll be financially responsible or even emotionally connected is a waste of time. Let him be, and move on...be the the best mother you can possibly be and raise that little boy with love and compassion and as an adult he'll realize that you were there and never gave up on him, this will be the greatest revenge when his father sees how wonderful of a son you've raised.
There will come a time when he'll be wanting to be accepted by his son and that will be a decision your son will have to make if he wants his father to be part of his life after all that he's not done for him.
He will not leave mother and child in peace.
He is the one who needs to move on. The mother has wanted that for the longest time, but somehow he always managed to worm his way back into their lives only to cause turmoil and upset again and again.
He declares he loves the child and rants and raves about same.
Yet he will not have the child without the mother ie he will not take the child unless the mother goes along. He rings and torments the mother and shouts about the love he has for "his son" and yet he will not support or take him off unless the mother goes. The mother wants him to stop. It's been going on for too long now and the mother is worn out.