Very well written. I agree with everything, every thought, excpet one that I will mention later. I am also one of Quinn's fans. I love the fact that she is mature enough to know what she wants, even though most of her business aren't legal ones. The fact that she is a challenge to MC and I feel that once she falls in love for him, she will change a lot of her behavior, maybe even let some that business behind. I will disagree with you in one aspect though. I do think she is in the college not only for her business, but to study as well. She is studying, even if this wasn't shown just yet, besides that one time in episode 7, where she is reading a book in her room.
I think there is so much to be developed on her story yet other than her romance with mc. The fact that the Dean knows about the prostitution and she is the Head of the business. I wanna wait and see how it goes.