In the second class of high school, he sat next to her. She saw him squatting beside the holly to feed the cat, and thought it was just gentleness. Later she liked him but pushed him away. He thought she didn't need him and retreated to his position.
On his wedding day, he stopped for a step as he passed by her. He didn't turn to look at her. She stood for a moment, then turned and left.
He drew the pencil lines in that book only when he knew she would read them. She doesn't know. He didn't plan to tell her anymore.
Concept: Secret love is a person's complete universe.