Why would she put herself through the pain?

"Maggie, he's only engaged, not married. Besides, you know what kind of person Millie is," Rosalynn pointed out.

“Even if you and Sanford don't end up together, would you want him marrying someone so detestable? A good wife can uplift a family for generations, while a bad one can bring ruin."

Rosalynn persuaded Maggie from a different perspective.

Maggie's eyes lit up, suddenly feeling invigorated.