I actually like the FL being protective of Ain because no matter how manipulative/calculative he is, he's still a child. He's still impressionable by his environment and he's still in the process of getting his own definition of right and wrong. Even adults shouldn't be treated as roughly as he was.
I hope though, that the FL is conscious of this rather than just treating it simply as poison bad, love good thing. And I really really hope the author portrays Ain more to his age/experience i.e. still being naive to certain things. His inner dialogue is too similar to his dad, who should be a lot more experienced