Mean
Victoire was mean.
That was the opinion of many.
Not that she blamed them, she wasn't the nicest to others.
But it's not like she had a choice, she was the first to come to Hogwarts, she was the oldest.
And being the oldest came responsibility, so whenever anyone tried to become a friend of the Weasley family, she warded them off.
She never straight forwardly tried to pick a fight.
But neither were they.
She didn't want to be in her position, but she did it.
It was a sacrifice she had to make.
To keep her family safe.