Hollowed, this is almost exactly what my W is doing--but be warned it went from "I just want to be apart, on my own and not married any more... I'll be as undisruptive as possible, only taking my car and laptop and all my stuff" to "I AM ENTITLED TO HALF OF EVERYTHING!" in only a few weeks. Be VERY careful, and do things for YOURSELF.
It'd be great if she came back. But you have to take care of yourself as much as humanly possible right now. Connect with friends and family, get hobbies--it's hard as hell (I'm going through it now, got served last Saturday) but every little bit helps.
