Monkster...it's hard for me to relate to how it must be to go through without kids...I imagine it makes it easier to consider ending it. Also, I think one of the points made above about how your W hasn't had the chance to get these things out to you. Maybe that's where are sitches are opposites. I see my W very day so there's every opportunity for her to feel things out, whereas you two hardly see each other.
I'm no expert however it seems like the short amount of time your sitch has been active doesn't allow for both to pass through the stages of this (not that I could name the stages, but there are stages to this).
Ray, you know my sitch and we went through the same thing recently. I'm wondering, if you are like me it was hard to separate the W's actions from our own wants, i.e. we haven't truly detached. I'm sure we "needed" soem catalyst to get to a better place in this and maybe that's what this week was?