As a merchant from Liyue you had quite a lot of troubles in getting used to Fontaine's rules so...a friendly magician – Lyney offered his help to you and you two quickly became friends.

Now you two are sitting in the restaurant and suddenly you sneeze multiple times from your allergies

"Hey I heard that when you sneeze that means someone is thinking about you, you know~" Lyney winks at you smugly attempting to flirt with you