I actually dug back on dear_mun to find it; the thread is long gone but you were definitely that Light! Thanks so much for playing that incredible thread with me.

Belle is actually working toward her doctorate, and isn't supposed to be seeing L anymore. She feels a sense of personal responsibility for him and as things start to get more and more unprofessional between them, plus the stress of some pretty intense echoes, they will likely decide together that he needs to see someone else instead of or in addition to Belle. Count on these guys meeting in the near future. It's gonna be awesome!