i wish they had a small dating arc tbh.... where shiki accepts under the impression that because of the distance between him and fuyuki, she doesn't see herself getting back to what they used to be. sayu tells fuyuki, and fuyuki like she said, gave up on him with a heavy heart accepting her loss of the competition between her and her best friend. progressively through shiki and sayu's relationship, sayu begins noticing that the efforts and special treatment she's recieving from shiki is the stuff he exclusively did for fuyuki she slowly finds herself feeling the guilt of shiki's unintentional false love... she breaks up with him and shiki is left lost. sayu runs after fuyuki everything thus giving fuyuki the determination and strength to repair the severed bonds between her and shiki.. but this is all just my delusion.
:P