You can make the in-house separation last as long as you can hold on and hope for R but to do this you need to detach all the way and this won't happen overnight.
I don't know. I don't know if in-house separation (at least in my case) is helpful for the "hold on and hope" thing, or whether it's doing more harm than good.
I do know that I feel it's impossible for me to "detach" while living in the same home with my wife and our young children -- there is no "me" time to work on myself or GAL outside of the family. I guess she gets a bit of "her" time while I'm at work, but I don't really have any. When I'm home, it would feel like a really jerk thing to do to just go out while she's home with the kids.
I suspect she is busy planning her exit strategy while I'm away at the office all day during the week.