A Proper Marriage (Children of Violence, Book 2)  

An unconventional woman trapped in a conventional marriage, Martha Quest struggles to maintain her dignity and her sanity through the misunderstandings, frustrations, infidelities, and degrading violence of a failing marriage. Finally, she must make the heartbreaking choice of whether to sacrifice her child as she turns her back on marriage and security.A Proper Marriage is the second novel in Doris Lessing's classic Children of Violence series of novels, each a masterpiece on its own right, and, taken together, an incisive and all-encompassing vision of our world in the twentieth century.