I wonder how this will play out with Reika as well. Obviously she's jealous as hell of Tae that she has Kurono as her boyfriend. Not sure if she would ever get as cold as to actually kill her, since the way she treated that gangraped girl shows that she's a very kind hearted person.
Perhaps she'll help Kurono protect Tae, or hell, even sacrifice herself. Like I said a few chapters back, I expect her to die once Kurono knows he wants to return to Tae, and he seemed pretty determined when he told Reika that she was his girlfriend.
And yeah, this event resetting his earned points seems like a given, extending the role Kurono will have in Gantz. Well done, plot!