Well actually. Alpha kinda got his end game in having both of them. He has the beta as a romantic partner and will likely rebuild his relationship with omega over time.
Well. Here spoiler
Don't read if u don't want to know.
Im only using Google translate to read the raw
They A and O only making peace between them and try to be better . The story already ended and idk if there side story for now its 2top and 1 bot
It was actually implied that they tolerate sharing because they DO love each other as well, just as family instead of partners. The ending actually surprisingly showed them being happy and satisfied with their lifestyle and it kinda makes sense considering that the other was all they had during their childhood. Well there will probably be a side story so that will likely be explored as well
It for sure needs a mini side story. it feels so ....unfinished ╥﹏╥
I mean I get it was going to be a poly from mid way in but it still feels like the alpha and omega still have unresolved emotions toward each other.
Ending it with playful tolerance is like "meh it was never that deep" ╮(￣▽￣)╭