None of them are implied to be main love interests, though. Dropping one this late (especially after you literally just culled your options down to one) is a...bizarre design decision, to say the least. Even if she isn't a main LI there is no way she won't be fuckable, which if you chose any of the relationship options but Other is kind of unfair to everyone else since you break it off with everyone. I'd rather have a girl promoted to full love interest instead that's been there from the start, even Quinn.
There are many aspects of Being a DIK that I really like (and a few that I dislike, but that's for another rant), but perhaps the most important one is the connection I feel with its characters. This results solely from the quality of the writing. I'm not saying DPC is on the level of prominent authors, nor will he be winning major literary awards, but the fact remains he is writing a story in which I not only care about the characters, I have enough invested emotion in them that I feel their pain, sadness, anger, and happiness, and often (but not always) I can relate to their feelings.
So call me crazy, but despite the fact that in Episode 8 my heart melted when Jill came knocking, that my heart was racing after the poolside dinner date with Bella, that my stomach was in knots at the lake with Sage (even though I knew the outcome), despite all the emotional states in which I've made myself comfortable over the last 8 episodes putting in the work to woo a specific girl or girls, I
WANT Zoey as a love interest. I
WANT her to turn the MC's world topsy-turvy. Not despite the chaos that will ensue, but because of it.
If DPC's writing style is consistent, then I expect he will make Zoey's presence either enrage, beguile, dispirit, or delight me. It is primarily these types of emotional responses that make BaDIK addicting to me (well, that and Bella). And although I don't want or expect the gut-wrenching experience of a burning house, I do want the emotional brawling to continue, even though as The Goddess puts it...
She does not just look like a harlot ( 2nd or 3rd class at best 
