It's a wild thought. If your soulmate is fictional, it might mean you have an incredibly vivid imagination or a deep longing for a certain kind of connection that you haven't found in the real world.
In theory, it's possible to have a deep emotional connection with a fictional character. But in a practical sense, a soulmate is usually considered someone you can have a real, mutual relationship with.
It depends on your perspective. For some people, the emotional connection they feel with a fictional character can be so intense that it feels like a soulmate relationship. But for others, a soulmate has to be real and present in their life.
I think my fictional soulmate would be Hermione Granger from 'Harry Potter'. Her intelligence and kindness really appeal to me. Plus, she's always ready to stand up for what's right.
Your soulmate in a boy story might be the one who understands you completely, supports your dreams, and is there for you through thick and thin. He could be a combination of strength and tenderness.