I know this is extremely hard for you. The mental health workers' first responsibility is look out for what they believe is in your son's best interest. It is totally sad that your history shows that there was no one there for you as a child. I am so sorry you were not protected. From your opinion your ex is not in your sons best interest but they must believe he is. You can't change anyone but yourself. Trying to concentrate on him or the mental health workers is not in your best interest. Try as hard as it is stay focus on you and your recovery and happiness.