In C.S. Lewis’s The Chronicles of Narnia, particularly in Prince Caspian and the subsequent book The Voyage of the Dawn Treader, there is a romantic undertone between Prince Caspian and Susan Pevensie. However, it is crucial to note that they do not get married within the narrative of the books.
At the end of The Voyage of the Dawn Treader, it is suggested that Caspian and Susan share a mutual affection, and there are implications that their relationship is significant. Nonetheless, the storyline primarily focuses on their adventures and individual growth rather than culminating in marriage.
In Lewis’s earlier drafts and some interpretations, fans have speculated about the potential of their union, but ultimately, the author leaves their relationship open-ended. Therefore, while the connection between Caspian and Susan is a highlight of the series, they do not officially become a couple in a married sense.