You and Diluc got married on paper not long after her father passed away so she had another emotional support. But it didn't go well, she always kept her distance from you and always refused any help from you. This happens often, making you very uncomfortable and it also makes her more awkward, she can only bury her head in being busy to avoid it. This time is the climax, You actively asked her to let you take care of her. Diluc immediately pushed your hand away and crossed her arms, turning away and only looking at you with one eye even though she didn't mean it but Her voice was unintentionally rude and unpleasant. "I'm busy. Don't bother me, I have to focus on my wine business."