He knew that he was afraid of him;
But he didn't know why he was afraid of him.
They were obviously unrelated people, but if they were really related, they were just classmates who hadn't spoken a word to each other for five or six years; then why did he feel his gaze so often?
He knew he was thin;
But he didn't know why he lost weight again.
They obviously rarely met each other. If they did meet, it was just by chance. Then why did he notice his thinness and uneasiness?
What did he miss, what did he do wrong...