LR: What was the thing about the hard bit is after a WAS returns home the LBS seems to become the WAS well I can feel me walking even if only in a theorectical sense not a real one!
This is an interesting thing to think about.
And I think you're at a point where you should be able to calmly, pleasantly discuss a few boundaries you might need in a non-confrontational manner. This is going to have to be done, it seems, sooner or later if you two aren't going to MC.
It's tough to have to take all that on but will ultimately be worth it. But don't let him stick you in mother or fix-it zone!