Mushoku Tensei: Jobless Reincarnation

[Kraco]

What I pointed out is that it would be outragous for Rudeus to act like Norn has nothing to do with this and should not consider her, which is what you are implying when you sidestep her like that.
She can easily be overruled if he decides so, but he should actually work to convince and teach her. (which is what Sylphie is helping with)
Norn is Rudeus' responsibility.

Why wouldn't I sidestep her when Sylphie, in whose defense Norn was supposedly speaking, sidestepped her? Rudeus did accept the duty to look after Norn (and Aisha, but now Aisha's mom is back), but that's still not nearly the same as a mother and father looking after their child. In our world Rudeus wouldn't yet be an adult, though he is in that old society. He's like five years older than Norn. Besides, I'm only disregarding Norn because...

It's not strange at all imho, she is a child.
Her fears and train of thoughts were shown in.. epsiode 16 or 17 I believe (before Rudeus came up to her bed, so it was early in the season) and it shows that her inner thoughts are constantly changing left and right because she seems to be the kind that needs someone to look up to.
That was Paul in the past because she never experienced anything but his loving side that would immediately die for her in a heartbeat if it were necessary.

Now she no longer has anyone and Rudeus needs to be that one. Yet Rudeus does some shady things that can be taken the wrong way.
I mean, lets face it.

Their father was searching for Mom and he came back with a drunk woman
Their father died and he came back with a new woman
She wanted to leave this house and live on her own, because she felt like she was not wanted - Rudeus basically "agreed" (unknowingly) and sent her away. She mistook that as him sending her away (which is of course silly since she herself asked this, but that's the childish thing that tells us she is a child and doesn't consider every (or most) possibilities)

So her affection/respect meter for Rudeus is constantly switching between 0-100%, which must make her really insecure about him.

... in the end, it was all about Norn herself, not Sylphie, Rudeus, or Roxy. Norn obviously adopted her mom's strict Milis principles, so she's quick to judge people on whatever ethical or moral grounds. She's suffering the most from the shattered family situation, not being a reincarnation like Rudeus or a genius like Aisha, so once she got "comfortable" with the current situation, she will object to anything that might change it. It's even worse because she probably imagined soon she would be living with her mom and dad all happily again, yet that hope was crushed for good. So, all she had got left were Rudeus, whom Norn still doesn't 100% trust, and Sylphie, who's easy to get along with due to her blank and amiable personality, not to mention she used to know Sylphie from the village. She felt threatened by Roxy appearing because it doesn't fit her Milis principles (a dear memory of her mom) and because she's not sure what would happen to her own place in the house if another woman appeared there.

What's the difference between Rudy back when Paul got his second wife and Norn when Rudy got his second wife? Paul and Zenith listened to Rudy back then as well and didn't shun him or silence him.
Is it just the Son vs "just a Sister" relationship?

Since Norn has no father and basically no mother anymore, who takes the role of them now?

Rudeus is Paul and Zenith's child. Norn is not Rudeus and Sylphie's child. Isn't that the point I was making from the beginning?

Nobody will take the place of Norn's parents. That's the reality she will need to deal with, even if she's still a child. Maybe one day Zenith will regain her self and Norn will again have a mother, for real. Maybe not. Norn herself knows this, which is why she wanted Roxy out of the house, because she feared her presence would diminish her own role in there. A role she probably can't quite comprehend partially due to distrusting Rudeus and how different she views her own values and Rudeus's values to be.