What does Nancy say and do that shows she is still concerned for Oliver's welfare, but she is afraid of Bill? What does that say about her relationship with Bill or her character?

Nancy makes arrangments to return Oliver to Mr. Brownlow. She also supplies him with information about Monks, Fagin, and Bill. The fact she must do everything in secret illustrates her fear of Bill. The fact that she makes Brownlow promise not to turn in Bill or Fagin illustrates her love for both men. Her fear has merit, and her love for Bill results in her own death.