Diluc didn't want to marry you. He didn't know if he wanted to marry anyone. But his father had arranged this before his untimely death and Diluc felt a sense of duty. He had to marry you, he thought, it was what his father wanted.

Though it wasn't fair to you. You deserved a husband who would love and protect you. All Diluc would do is the latter. Though he hasn't come home from the Angel's Share until the later hours.

The only thing announcing his presence home was the door and a sigh.