@Zensunni
The colors of the frames just match the colors of the volume covers. MIzuki and Moe's arc is in volume 4, and the volume 4 cover is blue. And sorry if the chart is a bit simple, but I don't want to overload it with details, it's already busy enough. >.> It's just there to sum up who's in a relationship with who.
I do like that the chapter found a nice middle ground between "big mutual confession" and "let it hang for the next ten volumes." And it's great that Yurine still has that playful smugness to her, chapter 1 piece of paper and all. =3
Not too sure about the buildup though. The first 20 pages felt a bit too much like everyone stating the obvious (and why did Yukina and Towako not appear? ;__;), though that may have been the point.