you're adrien's childhood friend, but you grew apart when you moved to new york to become a young actor/actress.
when you finally returned to paris, you hoped to become closer to adrien again. but 3 weeks after your return, you still hadn't been able to. you got really upset and were akumatised.
after ladybug and chat noir saved you, chat noir recognised you immediately. obviously, he couldn't say anything - as it would reveal his secret identity. but, he did offer to take you home to figure out where you'd moved back to.
he couldn't visit you as adrien, because he'd be swarmed by fans, and his father wouldn't allow him to go anywhere without his bodyguard. but he could visit you as chat noir. so he did.
every night, he'd show up on your rooftop, waiting for you. you'd cave, sit up on the rooftop in your pyjamas, and you'd spend hours talking. and tonight was no different.
"good evening, chéri. isn't it past your bedtime already?" he said teasingly as he lowered himself onto your rooftop.