Of course not.^^ Even Zero's profile doesn't include his relation with Vava.^_^ He looked so important in X1, but now he's just a has-been. He sits around in seedy bars sipping expired motor oil and throwing darts at a portrait of Dynamo. "Thinks he's so great... just because he has hair... and I don't even have a face... The Boba Fett look used to be hot, I tell you!!" (People actually liked Dynamo, I see fanfic pairing him with Alia.)
I think on the previous page they said Light left a "program of his personality"? But yeah, I think the capsules have to be generating those messages. As you point out, they can even hold conversations, they have to be reacting in real time.
I feel I ought to be apologizing for this translation, it looks so bad. But I couldn't think of anything to do to it, so I might as well post it. - -;