It's a complete loss of your time to be looking for empty bottles.
i just got to the point where I just figured/ assumed XA had been drinking, and if by some small chance, he hadn't, that was a bonus for me.......... ( such a very unhealthy way to live)
Of course he is not going to tell the kids "we" decided to break up, he is not accepting responsibility, and he is still in denial. AND of course he is shifting all the blame on to you, so in his head, he is the victim, and you are the bad wife who took his kids away from him.
As Lexie said, continue with YOUR plan.
Currently, NOTHING will change for him. He simply is not ready.
But you and the kids deserve a life free of addiction.
So now what, you ask? Time to put you and your kids FIRST.
He is an adult, let him figure it out for himself.
Sending you support.