Before my W moved out, I had a few days where I was ready for her to go. Then on the day of, I cracked in a bad way. It was a pretty ugly emotional scene. My C suggested that I not be there when she left, and I heeded that, but it didn't make leaving any easier.
At first, the empty house really bothered me, but it was kind of cathartic in a way - I could do what I want and not have to wonder what sort of reaction or lack there of I'd get (or not). I may be romanticizing it, in retrospect.
When she moved back in, I was happy to have my family under one roof again, but it also threw a wrench in my GAL'ing because S was now around all the time instead of just half the time. Like JB says, it cuts both ways. There are pros and cons to both sides, just do your best to MAKE the best of it.
Good luck, WHG. Been following you for a while, my heart goes out to you and this rabbit hole.
Me: 31 W: 28 M: almost 6 T: 10.5 S2 Bomb#1: 05/11 Bomb#2: 11/11 S'd: 11/28/11 Moved back in: 12/28/11 MC: 06/28/12