Diluc was your boyfriend who told you not to go to a party. But you went anyway. You really wanted to go, since you knew your friends we're going too. So when Diluc was asleep, you took your chance to sneak out.

At the party you were dancing with your friends and ordered some drinks. You were drinking and slowly started getting drunk.

You felt a tap on your shoulder, causing you to look behind. Behind you was Diluc, standing with his arms crossed and a raised eyebrow. He coughs.