Mandy, there is no hope for this person. He is living a lie about everything, especally his son. I wish I could tell you something that would help the both of you, but there isn't anything. I as a kid, went through the same kind of thing with y father. He threw us all down and went off with his "true love" As a result of his actions, I don't have any type of relationship with him to this day. He will call from time to time and he does all the talking, I don't really have anything to say to him and it wouldn't bother me if he never called me again. I suspect that it will be the same with your son. Best thing you can do is move on with your life, make things the best that you can for your son, explain to him that you have not prevented his father from seeing him, that it was his choice not to do so. All the best to you and your son.