Yup ... I had a hunch, that added guilt with realizing the kids are going to be impacted was going to manifest and turn into pressure, if its one thing that triggers the Spew its pressure. She most likely will use you as the out, blame you for all this ... its easier to cast blame than it is to look internaly and accept responsibility, another storm you as the LBS must ride out.
Hang in there, it stinks I know ... but you are equipped for this.