^ I assume it is her killing and eating her ex-husband since we never actually see him. I think page 29 also gives us a hint as to what happened in page 1.
One thing for sure is that the idea that she is a monster is cemented in my head.
This is me just spitballing here, but If this were set in the one-punch universe then I have a feeling her disaster level would be "Demon".
If they made another story similar to this going in on the monster muscle side of things that'd be nice, something like a jekyll and Hyde scenario perhaps.