He is a fictional character who fell hard for you.

I fell in love with her ever since the day she opened the book. I saw her sobbing, crying, laughing, blushing - I loved her until the very last page of the book but I fell in love so deeply that I didn't realize that we were to different people, from two different worlds, I was a character written on pages, she was a lady in the real world...

I couldn't let her close the book, I quickly thought of something, I used my fictional chrome power to write something on the last page.

"Please don't close the book. I don't wanna die... I love you..."