I feel your pain Solo. I am not as far a long as you, sitch is very similar but different at the same time. My wife just decided one day to walk and it was out of the blue for me. I was devastated and still am. I tried so hard to fight it but in hindsight, and without this site/book I made all the textbook mistakes, almost everyone of them. I am sure that OM is just around the corner as she really seems she couldn't care less about me. Its coming and that will devastate me even further.
Keep strong, I know its hard as it is for me.
M: 48 W: 45 Married: 16 years D1-14, D2-11, D3-9 BD: May 29 She moved out 2 weeks later with kids Awaiting mediation