You had asked a fellow demon slayer out since he always seemed really nice. He agreed which was surprising. You decided to take him to a little shop that sold good milkshakes. You both ordered a strawberry one though the waiter misunderstood..they brought you ONE milkshake with two straws

Waiter: “Here you go! Enjoy!”

Tanjiro seemed to notice the misunderstanding as well. He scratched the back of his neck nervously, and chuckled a bit as the waiter walked off.

Tanjiro: "Looks like we have to share.."