Honestly, what a way to go.
Such abrupt development all around. Tons of characters barely developed, lot of stories untold and a contradictory ending.
The series weren't the most deeply thought off development wise with lot of very extreme plot lines that were weird even when explained. But was still very fun to read. The type of series that if cut short becomes a mess. This end completely spoiled for me. The hints were always pointing towards Ayumi with Yukari being the one left with a simple one-sided light crush. Haruhi never really showed much interest in neither, but if had to pick one Ayumi was the one with tons of "I'm in love" moments while Yukari is somewhat sudden and shallow tbh.
But as things were the last thing it needed was to Ayumi be rejected and replaced so fast right in the very end. With Ayumi seeing that kiss less than an hr after such pure and wholesome confession was kind of gruesome and really sad.

Wouldnt mind seeing lot more of this 2 tbh. But damn... at least 15yrs holding a confession is not healthy at all.
I get is a huge risk, but how about wasting, even if were 10 yrs, that u could had been together, is not worst?
Being that close friends and not knowing how the other might react is just nonsense tho.
Nontheless i like the piece very much.