My love will forever be post-reveal Adrienette. That’s why I have TOO MANY IDEAS to count on how these two would interact after the reveal. So these are my personal headcanons, randomly written:
Every time Adrien/Chat flirts with Mari/Ladybug, she would flirt back, sometimes even touch him gently and make him blush and smile
On the other hand, every time Adrien compliments her (cause we all know Chat only complimented from the distance), Mari would blush crazily
Marinette always makes Adrien feel like he’s her right hand, not as a sidekick
Tikki and Plagg tease the f outta them as they blush and stutter hysterically
Even in school, they call each other “bugaboo” and “kitty”, but they’d hide their superhero halves by saying they took the nicknaming idea from Ladynoir
They’d always be professional during akuma attack i.e. keep talking like they don’t know who they are
Adrien and Mari are very curious and would ask about a bunch of signs they’ve missed-about the poem, the Christmas gift and the card, the bracelet etc.
Adrien would consult Marinette when he realizes his father’s true intentions (sadly, in canon, Ladynoir dismissed the “Gabriel Agreste is Hawkmoth” theory… for now)
Adrien would do everything to make Marinette fall for his goofy side too. At first he was embarrassed to act as Chat Noir and made only a spoon full of puns and flirts, but later Adrien started doing the same.
Their conversations are really natural. They talk about literally EVERYTHING!! At times, he’d say something really stupid that only popped into his head seconds ago, but it made Marinette laugh so hard his heart fluttered
They don’t necessarily start dating although they do get more comfortable around each other which made Alya wonder what are they hiding
When they’re alone in Mari’s room, Adrien acts like a cat. He really likes to cuddle