Reliability of the Narrator

My area of interest concerns the reliability of the narrator.  I feel that we are getting just vague stories and recollections of her ideas.  I'm curious why she describes herself with masculine features, and why she has nervous tendencies like biting her nails.  I guess the best way we can understand her is by listening to the recaps of people around her, despite the fact that she is telling the events.  The unreliable narrators makes us bad readers, like in The Virgin Suicides.