The girl from the Fiction Department, or Ficdep, turns out to be Julia, who will become Winston's lover in due course. However, when we're first introduced to her we don't know who she is. She's simply a very pretty, dark-haired girl who causes Winston "to feel a peculiar uneasiness which had fear mixed up in it as well as hostility, whenever she was anywhere near him."

Winston lives in a totalitarian society in which people naturally distrust one another, always believing at any moment that they'll be turned into the authorities for some crime or other, whether real or imagined. The Thought Police are the secret police force of the Party. They crack down on the slightest hint of dissent or independent thought. Winston is initially distrustful of Julia because he thinks she's a member of the Thought Police. On the face of it, she seems like a fanatically loyal Party member, so Winston gives her a wide berth.

Also, Winston undoubtedly has misogynist attitudes, dinned into his brain by a society which doesn't tolerate expressions of love or affection. He resents the dark-haired girl from Ficdep because she is pretty and sexually attractive and stirs up emotions he thought he'd managed to suppress. How dare she make him feel this way!