Sigmund Freud” the father of modern Psychiatry
Carl Jung: The Father of modern Psychology
So every normal man and every normal woman’s psyche (their mental being that made them who they are) had to have part of their nature which was feminine, masculine, loving, hating, kind, cruel, maternal, paternal, and on and on.
And similarly Stephanie can portray Edward so perfectly, because he actually is a part of her.
But that is also why they can suffer and delight with Edward. Because a part of each of them, is Edward.
As Mr. Buttons likes to say. “Go figure!” ..