Maybe it is a manipulation ploy, but maybe in your M she actually never felt heard. Could that be true?
Out of curiosity, how have you changed in your interactions with W since you decided that you had had enough?
Best wishes
R 25 years M 14 years S11 & S13 Working on it alone since Oct 2014 M in trouble a lot earlier (~2 years) Feb 2016. 1st R chat in a yr. Next R chat Aug'17 Still together