The parallel between Kurumi's mom and Kudou, both threatening suicide to stop Kurumi/Naoi from leaving, feels like a nice way to wrap up this arc. Naoi has finally learned the same lesson that Kurumi did, that the only thing you can do when someone is that toxic is cut them out completely. I really hope the speculation about Kimura coming between Naoi and Kurumi turns out to be wrong, and that this series is heading towards Kurumi/Naoi solidifying their relationship without a third rival getting in between them. I understand that people want their favourite manga to go on forever, but when the drama wheel keeps spinning over and over, eventually the series starts to feel like just a sucsession of events rather than one coherent narrative.