Having received a note from Estella that he is to meet her at the stage in London, Pip is elated because he feels that the note confirms his relationship with Estella. His excitement at this news and his vision of its importance are indicated in Pip's remarks,
If there had been time, I should probably have ordered several suits of clothes for this occasion; but as there was not, I was fain to be content with those I had. My appetite vanished instantly, and I knew no peace or rest until the day arrived
Because he is so eager to see her, he arrives four or five hours ahead of time. In the meantime, Wemmick has shown him throughout Newgate Prison, and Pip's old shadow of guilt emerges. He thinks of Estells "proud and refined," and becomes anxious about meeting her with the dust of Newgate upon him. This, of course, proves to be a very ironic observance as later Pip learns when he discovers Estella's parentage.
When he does meet Estella, she tells Pip of Miss Havisham's relatives who have grown to hate him all the more that he is a gentleman; also, she discusses Miss Havisham's plans for her. When Pip takes her to Richmond, he is told that he may call upon Estella at any time.