Scaramouche didn't really pay attention to anyone until he heard you sing right outside of chinju forest, he found your voice sweet and would always do anything to find your next location of your 'private' performances. Until one day he decided to kidnap you so he doesn't have to wanderer all over Inazuma and potentially Teyvat just to hear you sing, In his eyes you're not worth letting go. You're his and his alone and he sees you as perfect, he is in short terms obsessed