Miss Pross is not jealous of Darnay and Carton. She is devoted to Lucie Manette and is protective of her well-being, viewing Darnay and Carton as potential suitors for Lucie rather than rivals. Her concern is for Lucie's happiness and safety.
They both protected Lucie Manette, Carton by sacrificing himself to save her husband- Charles Darnay- and Miss Pross by fighting and killing Madame Defarge to stall for time (also becomes deaf), so they can get away from Paris.
Dr. Manette is Lucie's father, who is the friend of Mr. Lory, who works at tellson's bank. Jerry cruncher is a messenger for Tellson's bank. Sydney Carton, Mr. Stryver and Charles Darnay are in love with Lucie. Lucie marries Darnay who's real name is Charles Evermond. The Evermonds murder Madame Defarges family. Madame Defarge is Monsieur Defarge's wife (obviously). Miss Pross is Lucie's nanny. Miss Pross's brother is Solomon Pross (Barsad) who helps carton and is a spy with Cly........
Syndey Carton
Sydney Carton confirmed the true identity of Miss Pross's long-lost brother, Solomon Pross, who turned out to be the notorious criminal John Barsad.
Miss Pross and Jerry Cruncher run into Sydney Carton while shopping in "A Tale of Two Cities." Sydney Carton is a troubled lawyer who plays a significant role in the novel.
Miss Pross' brother's real name is Solomon Pross. He is also known as Sydney Carton, another character in Charles Dickens' novel "A Tale of Two Cities."
Miss Pross asks Dr. Manette if he has seen Lucie's husband, Charles Darnay, lately as she is concerned for Lucie's well-being. She also expresses her worries about Lucie's happiness and safety.
At the end of the novel, Miss Pross kills Madame Defarge in Darney's house.
Miss Pross had dedicated her entire life to Lucie Manette, and knew that Madame Defarge would not stop until she found Charles Darnay, the nephew of the man who raped Madame Defarge's sister and Lucie' s husband, and kill him, thus hurting Lucie.
Miss Pross brought the message to Mr. Lorry from Dr. Manette stating that Darnay was safe.
It's much more powerful if it is personally read. However, in the end, Sydney Carton sacrifices himself for Darnay, for the sake of Lucie and her family since he and Darnay appear so similiarly physically. In a way, Carton seems to die in a prophetical way or "sublime" as did Jesus Christ, (an allusion). In the end, the narrator imagines what Sydney Carton would say. Before Sydney dies, he meets a seamstress who is very poor. She asks him to hold her hand and kisses him as she is sent to the guillotine as well. (The seamstress ties in with the weaving of the golden thread and Madame Defarge's knitting)
Miss Pross brought the message to Mr. Lorry from Dr. Manette stating that Darnay was safe.