The omega looked like a slutty jerk since the beginning of the story, because he was just wishing that Tsugitsugu (the beta) were an Alpha, thus he could mark him and calm down the heat.
Now the Omega was just a sad trophy wife destinied to bear the child of a pathetic Alpha who raped him.
I honestly love this manga since its inception but it became so confusing and now after reading it i feel like i was hanged on a fucking cliff. No chance to get out. It would have been so beautiful... what a waste
Nooooo. That extra ending is not needed~!! Gaddammmit. Huhu