Your H sounds like my wife! Same flip of a switch change but she has filed for D. I am still fighting the fight! She has stayed out all night for 15 of 25 days, is a mini OM and repeats his words actions etc! Trying to ignore and detach. 5 kids all under 9. So very hard to do. I am sole wage earner and come home to be sole caretaker now. Always been perfect Mom and Wife prior to October when the nightmare began! Good luck I hope he comes to his senses and does not have to hit rock bottom to realize grass is not greener!