I'm not sure what steps to take on this issue anymore.
When I fell pregnant with our son my partner (now Ex) begged me to abort and made my life a misery for the first year; before he finally left us. He didn't want a kid or 'that' life of pushing a pram round and having no life. His words. We were engaged to be married....
Fast forward 8 years and he's now the Disney Dad. He sees our son every other weekend, Pays child maintenance with no problems (bar me having to ask for it before he pays me, every single month).... But for a while now hes been telling our son he wants him to go and live with him when he's older (12). He lets him do whatever he wants whilst at his every other weekend, no set bedtime, he's had an iPhone since he was 6, IPad, the most expensive clothes, holidays, and next on the list this year is a puppy. Honestly you couldn't make it up. I live a modest life and try to keep him grounded. However he always comes back from his dads spoilt. Takes a few days for him to go back to his normal happy self. But my biggest annoyance is that his dad constantly slags off his school (not that he took any interest in picking schools when the time came. He had no interest) and told him he won't be going to the secondary school here and that he will be living with daddy then. Surly this isn't heathy for a parent to be doing this. It's emotional abuse I think but need some advice on what others think?
I have spoken to a solicitor about this before and they can write to him and explain how this isn't on but this would cause such a massive sh*t storm. He would make my life hell.
I'm dealing with an emotionally unstable narcissist 
Sorry that was long.... I'm exhausted by it all. Thanks for listening x