Am I the only one who likes the ending. Lol. While I understand that the author should have fleshed out Karam's character more but you can't just change who you love anyway. Love is not some merit system wherein who is the most traumatized or who has stayed beside the protagonist more will get his love answered or something.
That said the author should have given Jun Seo a more satisfying end though.
At first I was dismissing this as your normal school life romance melodrama but that twist was awesome.
And it's heartwrenching every chapter. Lol.