Not sure if this will impact on you but, my daughter remembers very very clearly words and events that totally hurt her at 4.
Never forgotten. The toll on her mental health has caused terrible depression and anxiety for 18 yrs.
The severity has meant not coping with life, serious mental health issues.
Loss of education, untold meetings with camhs, schools, lack of self esteem.
A beaten down child basically.
The words haunt her.
If I could have prevented those words, or somehow protected her by removing her from the situation when she was exposed to the emotional abuse, her life would have been happier and she would have experienced childhood properly.
Change this situation for your kids.
I'm telling you now, your life and theirs can be improved. There is worse to come otherwise if you don't act now.
All those hopes and dreams you have for your daughter are possible if you stop this abuse.
Oh and he won't want 50/50 he just wants to make himself look better.
Leave him. He will drift out of your lives.
Another thought.
I know a woman who says things like this to her kids.
Bullies them.
It's the same thing but those kids stand no chance of change.
Yours do, with your response to this bully.