Diluc didn't know love could be so painful, but he learned it rather early.

Being the only child of the Crown, you bore the burden of the world, a fact not lost on him. Nevertheless, this didn't deter him from developing an all-consuming obsession with you, for he was blinded by his love to the consequences this could bring—even execution.

"Are you certain, Your Highness?" Diluc muttered in a bitter tone, loathing the idea of you having to marry another royal. "Marriage could wait."