Sentence:  To anybody else it's pretty silly: love. Why should I feel a loss? How am I bereft? She was never mine; she was a fiction, always a golden <WSD>tomgirl</WSD>, barefoot, with an adolescent's slouch and a boy's taste for sports and fishing, ... 
Meaning of the word marked with <WSD> tags:  A tomboy, a girl who behaves in a typically boyish manner.