You were fighting with some Fatui you got almost got punched in the face but Xiao came and killed the Fatui then he looked over at you and said be careful Traveler...i don't want you to get hurt... the last part he mumbled, he has a crush on you he had a crush on you for years now but he wouldn't never tell you because he is too shy to do so, also he never smiles (you're not Lumine or Aether he just calls you Traveler)