Board Thread:General Discussion/@comment-32483932-20170731065418/@comment-34134665-20170731145229

Personally, I don't think this theory is true. If Rosalina is anything like a slave to Mario, she'd probably be a personal assistant, but let's agree to disagree. Not related to the theory, although Rosalina may seem as the better parent to Jeffy, Mario is truly the better parent to Jeffy, as Rosalina spoils Jeffy. She'll support him even when in the wrong, and almost never punishes him for his actions.