SM, one last thing from me on this (at least for now)...
Right now, from where I stand this still remains a sitch which is very W focused...
This is no longer about your W, what she thinks, what she does...
Your boundary is set. No sharing of W... but... she's not yours to share...
So... keep working on you, because you want to be sure that you won't be controlling or manipulative of your next W... and you will be attentive to her needs, as you haven't been with your current...
You need to tell your W nothing about why you no longer want anything to do with her...
because... she claims she's done with you...
change yourself to change your sitch... and for a better future...
