Occhiolism
when you think you're the star of the show, but you're just a background character in someone else's story.
I thought I was the main character. Then I saw the main character and I was like, 'I’m just the sidekick.'
She said she changed the world. I said, 'Yeah, and I changed my sock.'
He thought he was the king. I told him he was just the jester.