Speaking from personal experience people like him only realise that after they fuck everything up. Only then do they realise IF THEYRE LUCKY. Otherwise they grow into narcissistic and sociopaths who never realise. Their lives are already bad they don’t know how to make it good and every decision they make is worse than the one before. And everything good they have they destroy themselves. And only then, after they incur the biggest loss, destruction of their families, failing their businesses, etc stuff like that, then maaaaaybe they realise. But usually they don’t.
Toughest thing, it honestly seem sooo sad. It would feel Iike ever is against you. No wonder when things didn’t go his way his actions got outta hand. Uggghh physiological battles are TOUGH
Imma play devil's advocate here and say that you can't expect a person who grew up unloved (his stepmom literally tried to kill him) to have a healthy way of showing their love. He never had a support system, he was physically and emotionally abused, he's learned to suppress himself without any kind of release... basically he's fcked up. He's incredibly fcked up. And he can only learn from the fcked up things that he experienced. Sure, he's an adult, but self-awareness does not come easily to people like him. Is that bad? Sure. Jooyung's not a decent person. But I wish people would stop diluting his character as simply "evil" and refusing to read aboyt him (i do understand why tho, im just disappointed) when there's interesting nuances in his story. Especially since, the beauty of this series imo lies in the author's masterful way of showing humanity.
You could have treated him better and not to “train him like a dog” because you would have got that love back but no you went and mess everything up with your own hands. Such a surreal chp #－.－)