Help me understand this TvT

I'll give you spoiler.
Aeroc Tiewind is an alpha aristocrat.
Kloff is an alpha but have no title. He is noble but he didn't inherited title from his father, only his older brother hold title. Kloff is smart and work, I think in present world it's equivalent of accountant. He handle money of his clients.

In first life, aeroc fell in love with kloff at their first meeting at aeroc party in his rose garden. But kloff was, conservative. He rejected alpha x alpha relationship. I m not sure, but I think (this is my opinion), kloff actually like aeroc too, but he refused alpha x alpha so that's why he dated Rapiel and married him. Rapiel is an omega, cousin of aeroc, he has same blonde hair and blue eyes. People say that they look, similar. Kloff really loved rapiel.
Aeroc was jealous of rapiel, so he hired people just to scared rapiel but the people he hired were total scum, so they raped rapiel (he was pregnant), and rapiel died. Then started kloff villain's arc. Kloff took revenge on aeroc. He made aeroc poor, lost all of his money and made aeroc took some kind of drug that turned aeroc into an omega. So he made aeroc birth his children. At first, it's just 2 children. Aeroc told all his children that their mother is rapiel, not aeroc. After the birth of the children, I think 2nd child, Aeroc was kicked out of kloff manor. Aeroc worked many minial jobs including becoming prostitute, get pregnant and always get miscarriage because his harsh life on the street. At some moment aeroc stay in kloff manor again, but he live in outside cabin. As usual. Kloff will rape aeroc, but aeroc is hopeless so he just okay with it even tho it hurt. Aeroc said if he get pregnant, kloff will be nice to him. So aeroc is fine being pregnant. But he never seen his children faces. He didn't even know any of the children names, except the 1st child.
Just to be clear, during aeroc stay in kloff place, he was severely hated by everyone, and tortured by kloff. In the end, at aeroc's last pregnancy (twins), aeroc ran away from the manor. He was raped by people, and then aeroc tried to kill himself. But kloff people found him. Brought him back to manor, where aeroc had to gave birth to the twins. Aeroc told kloff that, he went through what rapiel went through (raped during pregnancy), but kloff was angry and told him that whatever aeroc went through will never be like rapiel went through, or something like that. He proceed told aeroc that what he did was not love. Because aeroc is the devil. And he doesn't deserve to die. He had to keep living in miserable live tortured by kloff. Aeroc asked if kloff could lie and say he love him but kloff refused, and aeroc died.

Before regression, aeroc saw all his 6 children playing in the garden, so he tried to call them, but then he saw rapiel there, as their mother. He realized, he will never be the mother of his children, even in death.

2nd life begin. Aeroc was an alpha. But he suddenly turned into an omega, after meeting with kloff during aeroc party in his rose garden. But this time, aeroc didn't dare to interfere with kloff and rapiel. Kloff was hired as aeroc accountant to handle aeroc money. Kloff was dating rapiel, but this life kloff is more true to his feeling. Even tho he date rapiel, he still concern with aeroc. Anyway it took long time, kloff broke up with rapiel in the end. When kloff went to poor people district, he accidentally found aeroc was being pestered by bunch of people, so kloff helped aeroc. He brought aeroc to his house, and they slept together.
I know I wrote it like short but they actually more understandable if you read tge novel.

Anyway, in 1st life time. After aeroc died, kloff was sick, it turned out he was bonded with aeroc, but he can't die because he had to raise his 6 children. At some point, the children realized that their real mother was aeroc tiewind not rapiel. But kloff was angry and they fought. 1 of the children fell and injured. The 1st children left the house. Far more in the future, when all the children already left the house, kloff was all alone, and he kinda became crazy. He saw aeroc shadow and followed it, but it all his hallucination so kloff died fell from the 2nd floor by following aeroc's shadow.

Tbh, the novel is far more sad, but not inherently better. There's some that changed in the webtoon like, kloff in novel is far cruel and very temperamental. Kloff killed people (kinda like killing bad people but in the slum area).
And, I don't like kloff at all. I wish Aeroc could be happy without kloff. But Aeroc really wanted to meet his 6 children from his previous life, so I guess, whatever. But in the end, in this 2nd life, the children who are born from aeroc are different children from his previous life.
In the novel it was more, sad. It's like a mother who could never meet their children even after repeating time. But the webtoon made it more light.
Novel also have 3rd lifetime story, which made kloff as the one who regressing with memory, and aeroc wasn't interested in him and had no previous life memory.

I read the novel long time ago. And webtoon also, been on going long, so my summary might be off but generally that's the story.
If you ask, yes kloff is very black flag.
Aeroc was wrong in 1st life, but he paid heavy price for it already

THANK YOU SO MUCH. (づ￣ ³￣)づ Really wanted to read this type of plot, but damn, brutality is choking me (。┰ω┰。)

OH.MY.GOD woooowwww im actually speechless. I agree, aeroc should live his life without kloff. Like wow just im so speechless :D like wtf, im partially mad too, cause that's WORSE than Rapiel. JESUS