Heavy is on to something there ... with the cake eaters sometimes it comes down to a simple question
Is she afraid of losing you?
Starsky's approach here might not follow DB principles to the letter per say but even in my sitch when my W actually felt I was moving on without her .. its a shock to their system ... currently your W and her A are going just as she planned it.
My GaL activities really put this seed into place, and honestly I hit a point where M or D I would be cool either way ...At That point things turned.