I found the same thing CP. After my H told me he was done, I found that I detached a lot quicker. It's only been 2 weeks and I'm at that point where I find myself looking forward to him leaving instead of dreading that time. The uncertainty is gone and, like you said, now you can just BE!
Both 50 S14 M 16 yrs (his 3rd; my 1st)
ILYBINILWY - 24 Dec 2012 H moved out - 27 Jun 2013 Legally separated - 6 Sep 2013 Closing the door and changing the locks
instead of dreading that time. The uncertainty is gone and, like you said, now you can just BE!