I like to imagine that Gabriel has always been cold towards Adrien. I like to imagine the only time Adrien saw Gabriel smile was when he was with his wife, and Adrien’s mother.
Adrien wasn’t sure if he was like this before he was born, but he doesn’t mind. He’s got his friends to love him in Gabriel’s stead.
Adrien falls in love with Marinette, and Gabriel actually smiles when he first meets her. Adrien has no idea what’s happened, but he assumes this is approval.
Adrien’s never seen his father happier than at his wedding. Gabriel is overjoyed, and Adrien assumes that he really did love him.
He thought that, at least, until he heard what he had whispered to Marinette.
“I had always wished for a daughter.”
(( oops ahah ))
Submitted by @mircatulous-ladybug