I know your situation is a little different but ... still, it's uncanny how much you say rings true for me. 90% of what you wrote, I could just sign my name at the bottom and it could be my post.
One thing I don't hear you guys saying is ... well, I think my wife is hot. My attraction for her never waned. I know it's affected by everything else in the relationship, but that one part always never went away for me (despite years of bad sex life).
It's my next to-do project to do some serious reading about the effect of divorce on children, and to discuss it w/ my IC who seems pretty damn convinced that amicable divorces are really not all that bad on kids.
My W & I have been doing pretty well keeping things amicable at home. Actually, maybe amicable is too strong. It's somewhere between "cool" and "amicable". But we were a very affectionate couple, with lots of hugs and kisses, so I think the kids have noticed how we no longer even touch each other. But no fighting.
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final