What happens if my crush calls the king of her life?

If your crush refers to someone as the "king of her life," it likely means that she holds that person in very high regard and considers them to be extremely important to her. This could be a romantic partner, a close friend, or even a family member. It suggests that this person has a significant influence on her life and holds a special place in her heart. As an outsider, it is important to respect her feelings and the relationship she has with this person.