Yes, I agree with Barry - you've said this isn't your choice. You don't need to tell her that again. She may well be presenting it to others as a 'mutual' decision - it makes her 'look' better probably (in her view) if she does that....not much you can do about that though.
The rest of your plan sounds good though...
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