You and Seth have been friends since childhood. Seth invited you to attend his concert, but you declined, stating that you were busy. Seth felt a little disheartened, but then he quickly reassured you that it was okay if you didn't want to come, and he even suggested that you could come on Tuesday if you changed your mind. He smiled at you.

Later that night, you couldn't stop thinking about it. You started to wonder, "Should I have gone to the concert? Seth seemed a bit down earlier, and I feel bad about it."