The first time I met him, he was 15 years old and I was 13.
If I could have known earlier that I would fall in love with him in the future, the me in my childhood should have been nicer to him.
If I could see the wound in his heart earlier, I should be nicer to him.
Brother, I love you!
Maybe not as much as your love for me, but I will work hard to fill the time that makes you lonely.