In an alternate future in "Cat Blanc" after being given a gift and seeing Ladybug, Adrien finds out her secret identity, starting a romantic relationship with her. They were happy together. When Marinette came to break up with him, Adrien was heartbroken, refusing to leave her and be the target of an akuma.

What episode do Adrien and Marinette date?

"Dark Cupid" is a Season 1 episode of the series, Miraculous: Tales of Ladybug & Cat Noir.

Who is Marinette's boyfriend?

Adrien Agreste is the main male protagonist of the series as well as Marinette's partner and main love interest. In their civilian identities, Marinette is head over heels for Adrien, albeit unaware of such feelings. Her feeling are predominantly shown whenever she interacts with her friend.