I see spoilers saying that the alpha and beta get together and the president and omega get together which is so unsatisfying so I'm gonna write a new ending real quick.
As the Omega is leaving the sex shop with the dirty money he got from the beta he gets his as ran over and as he dies god comes down to tell him that he deserves this and gave up his right to a happy ending. While this is happening, back athe the sex shop the beta is making fun of the alpha bc he got raped and betrayed by the omega he was trying to help. After that the beta is his asshole self and leaves the alpha by himself and when the beta gets to the doorway of his house he is SMITED by a random lightning strike. The beta goes straight to hell for being a dick in general, being a dick to omegas for no good reason, and for raping the alpha. President is sad but he is still able to live a relatively happy life ignorant of the omegas sins. The alpha meets his fated partner and his partner helps him get over his trauma and be happy.
THE END
I don't give a shit about your sad backstory you stupid omega bitch. So what if people did shitty things to you? Doesn't change the fact that you were an asshole who took a good man's kindness and just spat, shit, and pissed all over it. You don't even look like you regret it or feel bad about doing that to him.