In terms of the separation and giving your W space, I would say that in some cases it's a very good thing. In my sitch, my W was just plain angry all the time which caused me to make rash decisions. When we separated, it was a good cooling off period and had gotten to the point where we were at first civil to each other, then friendly and finally where she has slowly made her way back to the house herself.
I disagree with PDT (sorry about that) about it being a chance for her to mess around. She would've done that whether she was at home or not and she was anyway.
She's told you flat out what she wanted in terms of thinking things out which is alot more than my W ever told me. Consider yourself lucky and build on her willingness.
Good luck to you.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.