I see!
The more people adore her, the more they are willing and able to fight for her.
Thay works well for a queen; it can also work well for Joan of Arc.
She doesnt have to marry him for her power to work, her power simply can be applied in any way she may find agreeable... and boy-oh-boy would she be agreeable to a "more mature" version of her own plan when begged by the prince and his fiance... Who is already working toward this plan.
....
Or so it seems to me?
Or to the edible?