Out of curiosity have you ever written out a list of what you think your W's priorities are...and put where you feel you fall on that list and given it to her?
In the 1st C session my H and I ever went to (right after I put my foot down about counseling) I was stunned to see the dumbfounded look on my H's face when I listed off what his priorities appeared to me to be. When I finished our C said "where do you fit on the list?" I told her, I don't...I'm not even in his top 10 priorities, I feel completely unimportant.
It was very hard for him to hear this from me, but he also couldn't deny when I listed all the things that came before me...it made it VERY evident that he made no room for me in his life at that time.
I'm sure you've probably done this, but maybe it's time to do it again. Heck...use her lipstick and write the freakin list on her bathroom mirror, next to your name put a "?"
Just throwing some stuff out there...hoping something sticks for ya.