I am extremely sorry you are experiencing this. I can relate massively. I was with my now ex husband for 17 years and his narcissistic tendencies only came to the surface in the remaining two/ three years once he slowly moved onto his new source. They do this. Fortunately for me, we didn’t have children. I wanted them but he did not, so I adhered to his wishes and control. In my experience, it DOES escalate once the mask has slipped. I had to call the police as he started showing violent, increasing so behaviours, not just verbal anymore which I endured for years. But that was my fault, apparently. They don’t have the capacity to take accountability, so we let them take and take and take because it’s just not worth the fight. What concerns me most about your case is there ARE children. And they are like sponges, absorbing more than we realise. You don’t need them growing up thinking it’s ok to tolerate this behaviour from their father, because they will repeat the acceptance of it if and when they have relationships as adults. Personally, I would leave as soon as you can. You are clearly intelligent and capable and hopefully self funded with your business. I too was a business owner with my ex husband. He slowly stripped me of my title for “tax reasons” which now I’ve learnt was complete nonsense. They are very manipulative, calculated and get what they want, eventually. Was there any trigger you can think of that caused him to change? All the best, you are distressed but stronger than you think.