I`d love to know too, if there`s anyone out there willing to share their exeperience of turning things around while living separately in the same house.
My H never completely moved out of the house, he's slept on the couch for over 4 years. I've not really turned anything around, and I can't push him out or pull him back in. Trying only causes more frustration for me and defensiveness for H. Of course living with H is frustrating also!
Watch those 180's, be authentic and don't try tricks.
The best thing that has worked for me is moving forward with my life while leaving room for him to come with me. You might think they aren't watching, but they are.
Live your life while you are still living. Riding the trail less traveled.