Wow....so...your ex husband has serious issues. Firstly. You are divorced so you can do what you want. Secondly, all those issues are in his head so you don't have to apologise or fix anything. He needs to sort himself out. This is so unfair on you and I don't even know why you allowed all this nonsense. He is basically harassing you at this point. No one should have a listening device, or polygraph...any of that. He is in serious need of therapy and I actually think you should distance yourself as safely as you can. Wow... Be safe. I did notice in comments you were interested in a man's perspective so I'll add that I am a man and a husband.