ExDP and I separated nearly 4.5 years ago. He's all sweetness and light to my face (generally) but has totally weoponised DS (10)! Over the years he has constantly undermined, belittled and actively lied about me to DS. Over the last year, this has definitely ramped up and I just don't know how to approach it. Grey rocking him doesn't seem to have worked. Ignoring it hasn't calmed it down either. I want to call him out each and every time something is said (at least one incident every 2-3 weeks) but I am concerned about the backlash on DS (and me too if I'm honest).. Previously when I have called him out, he's denied saying it, changed the story/narrative and on a couple of occasions actively said that DS is lying (when I know he isn't).
He then tells DS off for telling me and says that DS has gotten him into trouble and that I am out to cause trouble. The issue is that DS absolutely worships him and believes everything that he says. I am fully painted as the 'evil' mum, DS buys into this and its killing me!!
He definitely has narc tendencies, thinks he is bigger and better than everyone else, everyone else is stupid, compulsive liar, very controlling, manipulative and spiteful!
School are aware of the issues as DS is under several referrals and assessments at present (also has additional needs). I think school do see through him - he's not as intelligent as he thinks he is and although he is always banging on about how he works to try and promote a 'positive relationship' between me and DS, his actions don't match his words and this is evident. However, I don't know what they can do to help me. I suspect that this is a ploy to get DS to live with him 100% (50/50 at present) and to completely sabotage my relationship with him which terrifies me.
I just don't know what to do or how to approach this - any thoughts or advice out there?