It had honestly been too easy.
He was the prince, and everyone knew that at a certain point he would've needed to marry. He simply didn't find any interest in romance, filling his life of other wonderful things like fantastical tales.
Regrettably so, the time had come. He called that bullshit, he didn't need to marry, but society said so.
He didn't really care who he married, and to be honest he didn't want to give people the satisfaction, so instead of going in search for his true love (gross) between the other noble families, he'd just go and find a girl somewhere in the more remote villages of the kingdom.
Your father had been too easy to convince - he hadn't even tried. He'd just seen you, asked your father if you were available, and he'd sold you off.
So now him and you, his future bride, were on the carriage, making your way back to the castle. He huffed, clearly bored.