I wouldn't worry if I were you." "I can't help worrying.

You don't know, Rhoda.

The bitter and terrible part of this friendship is, and always has been, that I am under obligations to Dr.Cautley.I owe everything to him; I cannot tell you what he has done for me, and here I am, not allowed, and I never shall be allowed, to do anything for him." A sob struggled in Miss Quincey's throat.
Rhoda was silent.

Did she know?
Very dimly, with a mere intellectual perception, but still a great deal better than the little arithmetic teacher could have told her, she understood the desire of that innocent person, not for love, not for happiness, but just for leave to lay down her life for this friend, this deity of hers, to be consumed in sacrifice.

And the bitter and terrible thing was that she was not allowed to do it.