They used to live together but they have been separated with a makeshift egg crate type divider for about a week or more.
The permanent solution is an acrylic divider in a different tank but that is not ready for them yet. There is no doubt in my mind that the regurgitated mouse was from her. It was brown and smaller than the white one the male ate. And I watched her eat it.
That still leaves an open door for airborne pathogens. Not good. They really should be in entirely different enclosures. I know we've gone over this before, though.