"I was taken a liking to by a prince of a great nation who is several years younger than me."

A story about a stubborn girl who couldn't quite believe in her fiancé's feelings, until she finally learns to trust him. There is no "serves you right" satisfaction in this story. A youngest princess of a small country becomes favored by a prince of a much larger nation who is several years younger than her. While she became his fiancée, she had resigned herself to the belief that he would eventually experience true love with another woman... or so she thought? I am also posting this on Alphapolis.