It sounds miserable. Just do everything you can not to engage. Don't answer the door, don't talk to him on the phone about anything except your kids. Keep the doors locked, just don't let him in. He doesn't live there.
You have a divorce pending, so I agree with whomever said to tell him that all correspondence must be through the lawyers.
Your mantra should be "don't engage, don't engage, don't engage." Treat him like a tired three year-old. He can be explosive and full of rage, but you don't have to be part of it.
He has no right to see your cell phone. You don't have to prove anything to him. You know what's true and what's right. Meet him at a playground or a restaurant with a kids' area for visits.
There are ways to keep him separated from your real life. Start thinking about them. You are very smart, and you cannot let yourself get worn down with all these battles he stages. Your girls need you to be rested and strong.
xoxoxox
wishing you all the best.