IMO, the MWD techniques work like when in situations like CG posted above...a marriage that is just "troubled" and not already months into separation, infidelity (esp. repeated times), and a general D situation. I think it applies to WS that are still sitting on the fence.
I don't see that with Kevins W. She is gone and living her life as a very single woman without the formal paperwork being done.
If she wants the perks of M (insurance etc) its only because its what benefits her and her alone.
Keep going Kevin on the road you are on.
Me: 46 FWS: 36 Married and Divorced 4/07, Pregnant 7/07,False R 7/07 Baby Girl born 3/08 Kicked him out because OW: 7/08 5/10 He realized what he had and lost. Moved home! REMARRIED 3/14/11!!