But she is not offering full transparency. That is the bigger issue. She says she wants our M to work but feels so much pressure from me.
Ironic, that the only reason you didn't press for this immediately was so as not to pressure her. Yet now she feels "pressure," blames you for that anyway, and you still don't have transparency.
Appeasement doesn't work. Sadly, you usually have to fully vanquish an opponent at war before they are ready to negotiate the terms of the peace.