Margaret sipped on the water that was already poured out for her. Annabelle should be able to quickly see that she was no longer needed, and instead of putting up a fight with someone who could expose her at any moment, she should just leave.
Margaret had a way to get out of knowing Annabelle was without a child, but Annabelle would not get out of this untouched. She would be punished for playing with the castle about carrying a royal when she was not.
For the first time since they met, Amelia felt bad for Annabelle. What made Annabelle think that Margaret would protect her forever? Amelia knew Annabelle had not spent any time looking for allies aside from Margaret because of the panicked look and then the anger replacing it.