
The Reason why Sabelian was so detached to his wife and his daughter was because he has a kind of trauma that son became a phobia. Wherein he can’t stand being touched by women,that happen when he marries sabelian first wife (which was blanche’s mother) he was force to have romantic relationship with her and have s*x at such a young age.

Which is why I have to ask if (as they said) they read the spoiler why do they still think he's trash?
Unlike what the OP appears to believe, taking the ML's side here is nothing like excusing his behavior because of reasons. Instead, it's exactly like not blaming a woman with postpartum depression for having postpartum depression in the first place.
Plus from what other spoilers I've read it seems like Sabelian actually thought the way he was raising her would be less abusive than trying to shower her with love only to have her trust later betrayed by something he thinks of as 'normal'.
Finally, as you said on another post, the ML did try to keep the stepmother from abusing the daughter but when he ripped up the bunny for that reason everyone trashed him. It was like they despised him for doing the very things they accused him of not doing in the first place.

I mean it's odd to me how people take things to the extreme one way or the other. It's either: 1. If you have a reason your actions are excused or 2. If you have a reason your actions can never be excused; What? I know I say that reasons aren't relevant but that doesn't mean there aren't a lot of other things involved that can affect whether a person is at fault or not. And in Sabelian's case it's clear and present trauma that makes him react defensively which underlines his lack of fault.
And you're welcome!
i kinda don't like the king, i know he has his own reason for acting like that but trash is trash