I too am very sorry your having such a hard time, but I can also say that it will get better! The first thing you have to do is not look at anything informational at all, ever!
Get out of his schedule, FB, car, drawers, where ever you might find something you don't want to see. I had such anxiety over just logging onto my bank account, or seeing the little blue voice mail light blink knowing it was an unknown call from ea.
He's going to keep lying...don't give him someone to lie too, I would stop talking to him. Don't give him an ear for his threats and hatred. You will start to feel free when your not in his face...and he may start to STFU!
Try not to count on him for anything...don't make plans, don't let him see you get upset. IMHO, I would take a step back and stay far away from him, don't include him, don't engage him, and def only answer his questions if they are related to the kids or home businesses, and keep it short but respectful.
I treat my H (who lives w/me still) like a roommate/business partner I only need to talk to whenever necessary. If he is angry or rude I walk away or say maybe later we can get back to whatever!
It's been about 5 weeks now and it has made all the difference in my life, my health and my emotionally well being.
You have to find something that works for you, it's not about him anymore, he's gone until "he" comes back on his own.
good luck, best dm
The past can't be ahead of you in the future. You don't have to figure it all out, just pick a direction. What's next...I don't know but I can't wait!