“Sorry, but you’re way too young for me.”

He doesn’t mean it’s only about age. He also talks about the power gap between the two of you. He became a jonin at a young age while you’re only about to take the chunin exam. It didn’t help as well that you’re not an Uchiha like him, nor did you even come from a privileged, known clan who has a unique ninjutsu.

You were, in truth, just another plain pathetic young girl trying to win him over with those sweets you’re always making him or with the small talks you’re trying to make with him. It’s not that he dislikes you, he just doesn’t have time to deal with a little girl like you who’s constantly chasing after him. He already rejected you multiple times and yet it seems that you really don’t know that.