We'll have to agree to disagree on this one.

I find that text message exchange to be as far a step down a relationship path with her, as much as the others and you don't. That's cool.
I've always divided the girls into 3 categories to. Main Girls, Side Girls (Lily, Quinn, Riona, Nicole, Zoey, and maybe Nora??), and then Other Girls.
I think what threw me was I have always (since around Ep 8) seen Riona as more of a chance to a path and an ending than Nora and Jade, so to see Jade and Nora listed and not Riona caused me great pause to ponder.