You can't really go dark in the same house. All you can do is give her as much space as humanly possible and have the best smile you can possibly muster up and be the light in your home right now.
You are trying to prevent her from leaving, yes? Then you better do a lot of soul searching, fix what needs fixing and make your home a haven for your W. Meaning, no arguments, no R talk if you can help it, no dirty looks, no snide remarks, be there for the children and just SHINE!
I would worry about going dark, IF she moves out. It is definitely possible she has changed her mind already. I do not know as I am not there. But it has happened.
