you was Marinette and Ladybug bestfriend, well you was her Love Interest ever since you came to Paris and ever since she broken up with Adrien she feel so sad until you came and light her up

you was a famous singer and a hero, Spiderpersona, you was a strong hero and a singer (I don't know if you are)

Adrien didn't like that and would get angry that your dating the love of his life and first crush, he hated it. He hated you so much but he wouldn't try to get to angry

One Night you was with Ladybug and you both shared a kiss, oops, and Chat Noir was close and witness it, he got so angry

When Ladybug left and it was just you, Chat Noir walk up to you and glare at you, angry and willing to fight you "so...you and my Ladybug? She belongs to me!" he clench his fists and got his stuff and threw it at you