I'd get some feedback from a L on the financial implications (support...etc.) of retiring and taking on a new job in light of a potential divorce situation before you make any decisions.
Yes, it's not the life you were planning but as the saying goes you have to play the best hand of the cards you were dealt. It doesn't have to suck. You can make an incredible life going forward with or without her.
I get the reflection on the potential loss. Trust me. But like LH says it's OK to be sad for a while but don't let it linger forever - the sooner you get strong and get out there and start enjoying life the better.
