Her marriage to Campbell was tempestuous, with tensions exacerbated by Parker's increasing alcohol consumption and Campbell's long-term affair with a married woman in Europe during World War II. They divorced in 1947, remarried in 1950, then separated in 1952 when Parker moved back to New York. From 1957 to 1962, she lived at the Volney Residential Hotel on Manhattan's Upper East Side and wrote book reviews for "Esquire magazine." Her writing became increasingly erratic due to her continued abuse of alcohol. She returned to Hollywood in 1961, reconciled with Campbell, and collaborated with him on a number of unproduced projects until Campbell died from a drug overdose in 1963.