I'm not sure, but that is a really good question that deserves some serious pondering.
I guess I too would be concerned about how she would make it as a stay-at-home mom with 3 kids under 3 and no husband. But I also not sure that I would want her to stay in such a destructive relationship for the kids' sake too.
My mom and I are different. She allowed herself and her children to be abused "for the sake of the kids."