Princess Daphne is the prototypical "poor little rich girl," at once spoiled and unused to not getting her way, and yet ignored as a person and viewed by her father mostly as a means to an end-- chiefly, as a "prize virgin" to be married off to some neighboring prince, and thus the key to enlarging and strengthening the kingdom.
So to say she has a complicated relationship with her own virginity would be putting it lightly... Thus her sexual appetites, sense of entitlement, and bitterness about a life not fully her own will prove to be an explosive mix that will change the kingdom forever.