To be honest

sorry o cant agree her mother is a b*ch but Lafilia is innocent mistreated child she deserve better

I greatly agree

But she has the same nature as her mother... Even before her mother started to influence her in the wrong way. The first time she meet the crown prince she already started to act bi*chy like her mother. She started to cling to him and expect he will treat her like a princess or whatever. Not mentioning how she lacked any manners when talking to the prince. Like she already considered herself a close person to him and was envious as hell that the prince like Ellen more. She will jump on every man that has power and is handsome even though she is so young... Her bitchy nature is already at work... Just like her mother, as soon as she saw a man more powerful and handsome than her husband she fell for him right away...

Well it all depends on how the autor will create the character but i hope she will change for the better after the kidnapping

Yeah, I hope so too. Kids should have a chance to change. And I really want author to give her such a chance to become a good young lady in the future. Not so toxic as her mother. There is hope since she is young and her father is a decent person (a bit dumb though for negelcting her). But as for now her nature is no different from her mother's... Let's wait, then.

Dude no---
She has no manners because she wasn't a nobel..
Why would a commoner learn manners...
She was a commoner growing up to her age that's why she acts like that...
She's not a genius so she wouldn't get things quickly...
She's just a kid...
As soon as she got there everyone keeps talking about ellen...
The mother ignored her...
Her father was too busy with work...
And then she was forced to learn shits she doesn't understand...
Ain't everyone gonna be stressed cause of that?

Also she was acting like that because she's just a kid who grew up in the commoners area ... Where kids talk to each other like their close to one another...
She was just doing her best as a kid...
But then they didn't give her much attention because of ellen...
Ellen is already a full grown woman inside but outside she isn't...
But this gal didn't know that and only thinks that she's also a kid like her...
She doesn't understand a thing...

The mother also didn't like ellen's dad cause of his status...
Just his looks ...
Many people are like that for god knows why XD
And also how the hell will a kid know that shits XD
She's just a kid...
Relax...

I will only answer this one about manners, because have no time to read so much. XDD
She was told she can't call the prince by his name just like that, but she gave no shit ;) Either is she retarded or deaf since she still didn't know after others told her that she has to adress the prince formally.
Kid becomes an adult someday and most of the time takes what he gained from childhood to his adult life.
Well, I bet the looks wasn't the only reason since her husband was very similiar to his borther in looks when he took care of himself but she still preferred Rovel. Hmmm.. Wonder why. XD Well, whatever though, we will see how the story will go, perhaps the girl will get smarter.
Bay.

I mean she is a child who thought she was gonna live with her father and mother together in a big warm house w/o worrying abt any basic life necessity but instead got separated from her friends, started living in a huge mansion where she had noone to communicate and everyone was so focused on her cousin, that she naturally felt neglected and even her mom just neglected her the moment she saw and got rejected by her brother in law and her dad was too absorbed in his work and lost all contact her.
So when she saw the crown prince yeh she was haughty and everything but most importantly she thought she finally gained a friend for herself that doesn't prioritize her cousin instead of her, but then found out that wasn't true and thought that she will always just live under the shadow of Ellen. She's not a bitch, she's a neglected child that took the wrong turn. Doesn't mean she'll 100% stay on that same road.

Well yeah but no...
Again she's just a kid...
Even me when I was a kid never listened to anybody for the first time they tell me what to do XD
Most of the time they'll have to threaten me before I'll do as they say XD
Tho again it's because I was just a kid back then...
Not all kids will do as they were told and listen to everything they're parents say...
In this case she's not at fault because she wasn't taught yet why the heck she shouldn't act like this or that...
I'mma give you an example...
A little kid sat in front of a table where there is a lot of their favorite candies, their mom told them that you can't eat it and just left.
Ofcourse them who didn't understand why they were told that ate it anyway... So what if the candies were poisonous? What if it were expired? What if it wasn't actually a candy?
It's the parents fault for not explaining things properly... In my country as long as the kid is underage if they did any crime the only one who's at fault is the parents....
The one in charge of taking care of them is the parents... The one who brought them up is the parents... So the only one who's at fault is the parents... Many kids won't understand things just because you tell them.

Huh?
Nononono
They look absolutely different...
Rovel didn't aged because he was in the spirit world for this whole time so he stayed as a 20+ something but it's different for his brother... Stress is one thing because before rovel was there the shitty pig was also there... So it's really obvious that he's stressed to much...
And it may not look like it but from what I can remember their hair colors is different...

Didn't it showed just what the heck the case is?
She literally said that he was the only one in his head...
And that he so freaking handsome...
Pretty sure it's cause of the looks nothing else...