What if she liked someone? Well....I'd want her to be happy. Of course. Things have worked out for Nino and Alya and some of our other classmates so far.

[He's not quite yet getting the hint. That it is him that Marinette likes. This is of course, Adrien assuming she liked someone as something more than just a friend. He could be wrong in that but it seems to be what the other is implying at least. Even he could figure that much.]