I am not saying it is true for all girls but I think it is for majority.
I say many girls who frequently roam, eat, doing assignments together but when they talk about their self and about their family, they always put their statements in such a way that, their family, their manners , their clothes are far better than other girl.
Despite of this they live together I don't understand.? I think they are should not be so silly that, they could not understand the intention of other.
So, Question is why they not separate their ways? Don't destroy the question and answer completely in anyone wants, otherwise skip it.