We have 3 levels, as well described by
xxxorro , and all must be read from Aiden's POV. The last one, when Aiden admits he's been Ares is total control. Aiden admits it because he knows he controls Sophia. Her reaction is normal, nervous, inner dialogue on the way home, but then she comes to her senses and thinks it's best to continue with Aiden.
Aiden can use all of this to his advantage. On the one hand, because Sophia has refused one of Xavier's demands she has to fill in with something else, and on the other hand, if she has fulfilled all of Xavier's demands, Aiden knows that he controls her, that Sophia won't say no.