Here we go again... if you distilled every single character in this game, you'd find that ALL of them are not complex at all, in fact no offense to DrPink but the vast majority of them are quite one-dimensional.
Now of course this could all change this is only the SECOND update of the game, all the characters could show their complexity in future updates. For instance before this second update Bella appeared as just a stoic, boring, ice queen type of character with nothing special but after the second update we found out a lot more about her and her private life and that she isn't as impenetrable as she first led on.
So on the surface is Quinn just some massive bitch that likes to make fun on of the MC on every turn? Yes, but beneath that there is clearly more. For starters she has her whole angle that she is playing on the college, we have yet to find out what that is. Secondly why is she singling out the MC?(outside of the obvious fact that we are the main character) But in terms of her motivations behind it? Did she make a deal with someone? Does she see us as an easy target, a literal plaything for her? Does she perhaps see the MC as someone who can actually turn this entire college on it's head and go the full blown DIK route? Again there is way more to come. She certainly isn't a simple character, we have yet to find out more about her, her background, her motives, her actual feelings about everything.
Either way it gets me excited, because out of all the girls there, she is the one with the potential to stir most of the chaos and i am all about that chaos path, which is why to me personally she is the most interesting one so far. She certainly SHOULD be one of the most fun characters to focus on, again depending on how willing DrPink is to go full blown DIK with the MC.