
I'm sorry you're going through that, we know how it feels. You have the oportunity to deny things, when he is regulated. It's in the times his emotional arousal levels are so high when it would only do wrong. You'll see, or you'll learn to see, that, from your first answer and his reaction, you'll see if he's ready to listen, or if he's not. I'm sorry he involves your daughter, that's tough.
I wish you the best of luck, and I hope you continue writing. We all benefit from reading and answering and bouncing ideas to one another.