I'm going to have a conversation with him maybe tonight depending on his mood. Very short and sweet. That this is our family/marital home and he can do as he pleases somewhere else. It's not working for me him continuing to be here. Illthank for all the changes he's made and the help he's given (blah blah) but that it's time he goes.
I don't think I'd mention thanking him for his changes , nor his help. He has had an ulterior motive all the way through. If he could, he would use your own words to show what a great guy he's been.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!