You don't need to worry about us XP
However, we are not together anymore. We separated about two years ago. We don't really talk at all either, but I don't really have a bad opinion of her; it's more that she moved on and hasn't been online (here or elsewhere) in quite a long time.
So, while I can't speak for her exactly, I'd say feel free to draw them together if you'd like ^^
I don't think she cares about her characters anymore (see her journal on her page), but I certainly still keep mine in mind and enjoy the pics of Neonite and Kellin together (heck, I have some commissions of them hanging on my wall~).
That said, if you don't feel comfortable with that, you are free to pair up my characters with others (or themselves, I've definitely done that before XP). I do tend to keep Neonite in more "canon" relationships (as I consider him to be a mirror of me for the most part), but I won't restrict you, and Neonette is free to be with whomever ^^
Kirra made some awesome ref-sheets of them too if you need them~