OP,
You have had 25 years of this domineering, disrespectful man whom you have shared an unhappy, stressful marriage with.
You are now done.
He is doing what a lot of nasty pricks do when their emotional punching bag decides they don't want to be around them, rewrite history.
Let him talk whatever shite he wants.
How convenient for him.
Stop talking on board what he is saying and considering that it may be true.
25 years of being silent, ignored and disrespected has hollowed out your self belief.
He is a nasty, self serving, arrogant prick.
You are done.
Answer him the next time with the truth.
He has behaved badly for years and you are done.
Tell the children that you have been very unhappy for years and no longer want to be married to their father.
He will say I don't want this, this is all your mother's idea.
Answer YES it is. I don't want to be married to you any longer.
Own it OP.
Tell him a big YES. I AM DONE.
He is such a bully he thinks if he blames you, you will be afraid to go through with it.
Who cares what self serving bullshit he tells himself...once you get him out of the house.
Own your decision.
Your children will cope.
25 years of this misery with him is enough.