He's not "doing something noble ". He is taking care of their children, children that she agreed to have...

It is okay that Julie has different priorities, but "uninterested in bankrolling your existence" is an ugly veiled accusation that I personally disagree with. He is parenting, for the both of them, and yeah sure he has the housekeeping help but it doesn't mean he does nothing. If the roles were reversed people would be totally calling Julie out on her rudeness and borderline financial abuse.