he is not an antagonist. this is his own story and not chase so we can't see him now in chase's pov. fyi, he is the reason why this universe were created so you can't paint that the author is trying to make grayson likeable when his story was the first one that the author created in her all omegaverse. she also said that is why grayson and dane's story well developed than the others.
Grayson was never an antagonist, if u ever read kiss me if you can side stories, when chase is dying by pheremones overload he is the only one who cares and joshua was just playing basket ball, Grayson literally searched the whole city for joshua to save chase. And joshua asks why are u worried about chase and Grayson replies to him "He is my brother" and joshua himself realises that Grayson cares about chase so u can see it.
Grayson is one of the most complicated character and nope Grayson hasn't changed he has always been like this in every other story kiss me liar and the other stories too he is same like this.
He is the same completely we are just seeing everything from his Pov in this story
Exactly what I feel. But when I said this, Grayson’s fans got furious ( ̄へ ̄)
I understand that Grayson isn’t exactly right in the head, but the difference between KMIYC’s Grayson and DMIYC’s Grayson is just too damn vast. It honestly feels like he has multiple personalities. It becomes even more obvious when you reread KMIYC after reading DMIYC
may I also add to your comment that I find it very strange how, you can't criticize anything about Grayson's personality, a bunch of people come at you extremely defensively, especially the novels fans. this isn't even a criticism of the novel; it's the manhwa version of Grayson, which obviously isn't as well-developed as the novel version, since the manhwa readers have a different impression of him
i really love how you guys always excluding the novel when it was the blueprint of the manhwa and the omitted scenes are not even important to the story. you actually said grayson is inconsistent antagonist when he is not an antagonist, if you just said that you don't like his character then we are good but considering him as antogonist in his own story? nah.
Basically it's different pov that lead to different character perception and the more you spend time with a character, the more you understand their mind regardless of whether you agree with his action or not. And I wouldnt called Grayson being more likable here considering almost people are hating him (his exes, colleague, Dane) and him still causing all sorts of sheningan along his way. What most readers dont expect is all characters is their own mc in their story, including Grayson, Dane, the Miller parents and siblings and even Henry Issac that will not be fully potrayed in another person's pov. The best way to understand a character would be to to read their story and see from their pov instead.
and guess who the fandom that has always a fight the other fandoms? who are excluded in the gc with all the other fandoms except to that saintly fandom? guess what fandom is always on other if you can series' content and talk about chase even if he's not mention there? guess who the fandom that can't talk about chase without bringing the other characters?
and their reason is? bliss got all the love from the parents and chase didn't. that's why the other fandom don't even try to bond with chase's fandom. they even hate josh for not telling to chase about pete atp they are just glazing chase 'cause wdym they also criticize josh for that reason when you only need is common sense to understand josh' situation.

I feel like the characters’ personalities are too inconsistent; like I think the author/writer was trying to make Grayson likable but it’s not even the same guy anymore(?) like isn’t he suppose to act like a antagonist? and be the reason his younger brother is traumatized by omegas? Like why is he acting like some loser? Where did his evilness go? I’m sure there’s a way to make him reformed bad guy but this isn’t it. He’s not the same guy even with the given circumstances. Doesn’t make any sense. Idk if I can keep reading; idk is there something I’m missing and I’m wrong?