She is a bargaining chip for the princes to seize the throne
He is the prince who seizes the throne
He doesn't love her, and she doesn't love him either. Two people who don't love each other are entangled together for their own dreams.
She is the princess, he is the prince, she helps him, he protects her
As for love or not, it doesn't seem to be that important.
Intention: Deep down, the word "love" doesn't seem to be that important.