It amy not seem like it just now, but I am sure you have done the right thing. There will be wave after wave of sadness, they come and go, but eventually get less and less.
I am still not in the place I want to be. Still looking at the M with a hint of 'rose coloured glasses'. It's the good times that I am having trouble with letting go. I am trying to concentrate on the 'truth' though. The last 2 years or so weren't pretty.
I think in a way, where the WAS rewrites the marital history to assuage their guilt, we, the LBS do the opposite and find nothing but good memories.
Somewhere in there is a compromise. It's a hard job to dig it out though.
Try and keep up your PMA. We are all rooting for you.