Let her. Just don’t get involved yourself. This gives you “I told you so” rights when she comes home exhaustipated and emotionally vulnerable. However, you may not wish to exercise those rights in the interests of family harmony.
Best if she discovers for herself that you can only help those who want to be helped. Let this one slide past without getting yourself involved I think. Just have some comfort for her ready when she gets back. Maybe cook dinner and do all the kid things while she’s busy elsewhere.
Came across a short on youtube of a customer asking a baker for grass-fed salmon on her bagel. Wtf?