Hear me out.
She’s rich, beautiful, and meets a man (as handsome as she is beautiful, and not in need of her wealth so she should be able to take him at face value) who makes it clear that caring for his children isn’t a top priority for him.
He proposes and then suddenly, thanks to the appearance of a singing and painfully chirpy nun, he’s in the running for Dad of the Year 1938 and poor Elsa is painted as the villain.
In fairness to her, she bows out with dignity. A lesser woman would have keyed his car. Or shopped him into Hitler.