"Fortunata y Jacinta: two stories about married people" is a classic novel by the Spanish writer Benito Perez Galdos, which was published in 1886. In this work, the author tells the story of two women - Fortunata and Jacinta, who live in Madrid during an era of turbulent changes in society. The novel is a reflection of the conflict between two women of different social classes, their feelings, judgments and relationships with men. Reproducing the realities of the times, Pérez Galdos created a complex canvas of family relationships in which each character illustrates their own moral and ethical conflicts. The author successfully combined social aspects with psychological portraits of the characters, revealing their internal conflicts and contradictions. "Fortunata y Jacinta" is not only a fascinating deep story about love, betrayal and loyalty, but also an important image of life and society in Spain in the second half of the 19th century."