I can't tell. Could be just because now there are claims (since she died) that she donated four eggs to MJ and is bio mother of his 3 children.
http://www.celebdirtylaundry.com/2016/michael-jackson-childrens-real-mother-vanity-debbie-rowe-surrogate-prince-paris-blanket/
I had the chance to work with Michael Jackson who was as brilliant as they come.
Tommy Mottola