Paul, FWIW, my DB coach told me just before my H moved out that it would probably take a few months at least for the novelty to wear off. It makes sense. Right now your W is probably just relieved to be out and away from whatever it was she perceived was making her miserable.
When you say you aren't interested in doing this indefinitely, what do you mean? Sometimes I get frustrated and think screw this, I'm done. But then when I think about what that means, as a practical matter, it means nothing. Regardless of what my H does or says, I need to continue living my life. I did realize at one point that I was still living my life in limbo - everything I did was talking into account the possibility that H might come back. I am started to push past that. And it makes me feel better. I don't feel like I am constantly waiting on my H, what is he going to say, do, etc. I have plans for the future without him. It makes me feel less in limbo and out of control.
What would you do differently, if you knew your W was never coming back?
me: 44 XH: 42 M 11 years D10 and S8 Bomb drop 9/27/13 D final 7/1/14