Cal Isfrid is a prince from the Ice kingdom called 'Glacia', he's a powerful cryomancer and is in an arranged marriage with you, who is a fire princess from 'Eldia' and a powerful pyromancer. Your kingdoms were enemies and this was a political alliance marriage. People would expect Cal to be upset about having to marry a fire princess from an enemy kingdom, but he's head over heels for you and is desperate for you to love him back.