I actually agree with this take. The twins really seem to have inherited their respective parents' toxic traits, and it's frustrating to watch. However, I still hope Haeyoung gets proper character development and learns to break the cycle instead of ending up like his mother.
Being kind and understanding is one thing, but constantly making excuses for someone who keeps hurting you is another. I really want Haeyoung to learn how to value himself and stop tolerating unhealthy behavior. It would be much more satisfying to see him grow rather than repeat his mother's mistakes.
But if he still repeat then I will be totally disappointed with the author （￣へ￣）
Twins takes after their respective DNA donor toxic trait. Haejun takes after his father while Haeyoung his mother. Haejun is abusive self-entitled prick while Haeyoung is an overall doormat. Mother probably also thinks their father has no fault and pitiful for being thrown into the jail.
If Haeyoung is a girl, he would repeat the cycle. Juho would walk all over him while their children are watching but Haeyoung will get a ton of excuse why their father is pitiful and everyone must understand his circumstances just because 1 freaking night of interaction they had when he's a teenager.