I agree withdrawal a little further may be a good option. Allow your W to pursue this a little more if she wants to. I do think you remain very 'available' to your W Edz. I can see your POV as far as S matters go - but it extends beyond that.
You say that your boundary is you won't be WBF, but your sitch reads as though you remain WBF....
Maybe you could try very limited availability for a week, whilst being pleasant, brief and a little mysterious.
Like Jim, I'm just not sure - but hopefully food for thought anyway...
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus