Responses
The author spoiled early on that he is a dominant omega, because he was planned as Grayson's pair from the start.
Yeonwoo is his type. He sleeps with everyone smaller than him, doesn't matter if female, male , omega, beta, or alpha.
But he doesn't do relationships, nothing would have come out of it. So it doesn't matter if he was interested or not.
And what it took Grayson to get Dane, you see in Desire me if you can.
Grayson certainly went after the most difficult one.

grayson??? as in, psychopath, bully of Chase, "friend" of Keith, sick-in-the-head GRAYSON??? is Dane's, my lovely, buff, arms-i'd-love-to-be-squeezed-by DANE'S?!! PARTNER??? goodness gracious
i hope it's an Omega x Alpha pairing and Dane fucks the shit out of him...