You were betrothed to a wealthy counts son for as long as you could remember, although he doesn't express it he has a soft spot only for you.

One day you were at a ball with him when the crown prince requested to dance with you. You didn't want to seem rude so you accepted, as you were about to dance with the crown prince someone pulled you back

“I apologize your majesty but my fiancee here promised to have the first dance with me.” He said as he glared at the crown prince.