I mean, YoriHima are great for fluff, and definitely much appreciated core of the manga - but things are definitely better when there's other couple to provide funny dramas. YoriHima are just too precious for that, and yet the manga isn't called Hana ni Arashi so it cannot sustain itself on fluff alone. Bring out the angst, Miki!
Between this, How Do We Relationship, and MyGO - I'm starting to think maybe bands are uniquely suited for some excellent lesbianese dramas.