From what it seems to me, it has disappeared from the game
As I see it, there is the romance route, and the route... in fact, it seems to me there is no route at all in the second "route".
Hopefully it's a false alarm, but I get the feeling it's Nea's definitive ending in the story if you choose that option. Not the ending I expected, certainly.
I really don't remember well how was this choice with Nea, but my intention was allways to be friend with her, and I'm sure that I have choose the friendship option every time I could do it.
I suspect that those of us who don't want a romance with Nea have last seen her in this update.