“It seems,” said Estella, very calmly, “that there are sentiments, fancies, – I don’t know how to call them, – which I am not able to comprehend. When you say you love me, I know what you mean, as a form of words; but nothing more. You address nothing in my breast, you touch nothing there. I don’t care for what you say at all. I have tried to warn you of this; now, have I not?”

– Charles Dickens

Great Expectations, Chapter 44. Estella does not comprehend or feel love like other people do, she explains to Pip. She reminds him of how she warned him of this, when she told him in Chapter 29, “I have no heart.”