Promise with Star Light, Volume 1

He had a secret crush on her for ten years, married for three years, and for 13 whole years, he had given her the best years of his life. But even so, he couldn't even match up to a single hair on his heart!

He tore her bones, tore her tendons, drank her blood.

In the end, he had even forced her to stab him five times in front of him.