Joey, I saw your other thread from a few days ago. You have suffered greatly in your lonely,
soul-crushing marriage to this man you describe as a narcissist.
You say your H has beaten down your self-esteem. He has devalued and shown no real interest in you, and has viewed you as someone to look after his children while he works. When both your mother and sister died within the past 5 years, he provided zero support or empathy. When you finally had enough and told him you wanted to separate, he acted devastated and said he loved you, but it was too little too late. He said you must be having an affair, which is untrue.
He is well aware of the massive support you gave your close friend and her children during their recovery. (You stated that you were by their side practically 24/7.) He is also well aware that you were very uncomfortable with her line-crossing and over-reliance on him. I suspect he actually lapped up the ego massages she provided and it was likely a 2-way street scenario.
A narcissist will become hostile when his ego-extension stops servicing his wants/needs. It is clear that he wants to punish you and inflict pain, and is twisting the knife. As he lacks empathy, he doesn’t even care if their dating upsets or confuses the children. They may be jarred by their dad dating so soon after he just moved out, and especially by his getting together with this woman who had been a close family friend. That he used them as a conduit with hurtful news speaks volumes.
Joey, your shock and upset are valid. These are indeed low people who have no loyalty, decency or integrity. They would relish a pained response from you. Leave them to their fetid doings, as they don’t merit your words or energy.
Leaving a narcissist takes great courage and determination. You’ve chosen a brighter, healthier present and future for yourself and your children. This latest blow won’t keep you down for long. Surround yourself with the support of trusted friends. Envision your mum and sister cheering you on. If you need to speak with a counselor to strengthen your self-esteem and help you move through the emotional turmoil, do that.
You’ve written about volunteering at a care center after you suffered a previous loss. You found great solace in giving to those people in need. I’m not in the UK and don’t know about your current COVID rules, but perhaps you could resume volunteering when possible.
Keep posting here, Joey. 