One thing is very strange. Quinn is after the MC like hell the whole time, but won't let the MC help her with her bloody nose. (Unless of course the MC fucked Quinn in EP4) if not, the opposite is even true, she pushes the MC away.
That scene right there is the thing that pisses me off the most about the game. Not because it's bad, but because it's probably the best scene in the game, and it's locked behind a choice I would never make for any reason other than 100% completion.
The magic 8-ball provides a window into her core personality. She's lonely; she wants someone to love, and who loves her back, but she's too cynical to accept that it's even a possibility.
The fact that she doesn't say anything during the sex scene - no dirty talk, not even friendly banter, nothing - accompanied by a quiet song about finding a light on a journey through darkness, shows a character who up until this point has been nothing but villainous and sadistic at her most vulnerable, enjoying a brief moment of solace and intimacy with another human being.
It does more to humanize Quinn in five minutes than every single word that comes out of Maya's mouth all game long. And all her internal monologues too.
But you'll never see it unless you've already decided to fuck the villain because you're a completionist. Or because you're a massive horndog, I guess. Either/or.