It all began while Marinette was blabbering how amazing how Adrien is, she complimented him while Chat noir was just listening, admiring her from afar. His civilian identity was Adrien Agreste, but Marinette didn’t know that. They were both blushing a bit but for different causes. Marinette was just blushing cause she loves to talk about Adrien, While Chat noir whose listening to her and is Adrien is flattered and slightly in love. Marinette: “He’s just so amazing!” she smiles