RBG80-- don't get so hung up on the fact that your W was very loving and physically intimate w/ you before she dropped the bomb on you. That kind of sudden shift happens with nearly all of the relationships that are described here. She tried, tried and tried to make it work (in whatever incomplete and dysfunctional way) and then her mind just changed. That happened to all of us. It doesn't mean her reasons for dissatisfaction are invalid or -- more importantly -- that you can reason with her about it. You can't, and you shouldn't.
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final