He didn't mean to rape him though in omegaverse omegas give off sweet phermones when heat which attracts the alpha and an alpha cannot resist no matter how hard they try. The alphas mind goes blank of sense and falls to instict. So it's not the alphas fault. The omega also came onto him at one point which that scence didn't class as rape.
Also the alpha loves him that's why he doesn't want him to leave. He's scared of letting him go because he fears something even worse could happen to him like at the start. And as I said he loves him that's why he doesn't want to let go or say a goodbye.
And yes I dislike that the omega is using him. The alpha will do anything for him to make him happy to even make him stay he using this time to make the omega fall in love with him too. However they dont realise it but they are destined mates as both have very strong phermones for one another which would be strong than other mates. That's why it's even harder to resist each others phermones.
Hope this helps I mean no harm
(=・ω・=)
Honestly that last time wasnt due to pheromones but because he wanted to make him stay, make him his or whatever. It was rape. Unfortunately omegaverse or not authors often use that plot so that seme can redeem himself afterwords. Anyway, Im willing to overlook that in this manga, if it continues to be cute.
Sorry if you got the wrong idea of my comment I was saying the magazine is cute agreeing with the person before on that the manga is kind of cute.
I wasn't saying rape is cute and why would I it's a serious thing that actually goes on and is NOTHING to laugh at or call cute. So please read everything before jumping to conclusions.
I mean no harm and I don't like fights. Do please understand what I actually meant.sorry for any misunderstandings we had. Σ(っ°Д °;)っ
Apologies for jumping to a conclusion. I think after reading so many comments justifying rape, ones tolerance wears a little thin, so it was my fault for swearing. Yes, on the other occasions they had sex that could probably be chalked up to the alpha/omega absurd logic, however I feel the instance in the hallway, when Hye-sung tried to leave was regarded as rape by Hye-sung, Dojin's motivations were anger and desperation, but he still had sex with an unconscious, un-consenting body so it was in other words a crime.

I hate the alpha for raping the uke several times. The alpha is constantly taking advantage of the omega weakness (manipulating and such). He didn't even allow the omega to leave. Like WTF ?! The alpha really needs to let the omega go and he should repay his faults.
HOWEVER, I hate the omega for being so greedy and cruel to his baby ( by hitting his stomach and such). I know that he is not ready for being a dad, and I know that he is forced to carry this child. But that's a life, human, I find it's too cruel. I can understand that he wants the money for the child. Sure, he can do that, just give birth to the child and then leave with the money. Yet, he is constantly asking for more which I can't relate... ╮( ̄▽ ̄)╭. Now I'm annoyed with his greediness to the point that I wished the alpha just agree to abort the child or have a premature birth or remove the baby early ( I'm not very good with this ...).