Family estrangement can bring up big, difficult emotions, and it’s not always about parents and children. Looking back, Alice Lewin recognises how her relationship with her sister ruptured slowly, one crack at a time. The pair were close growing up; her sister, who is three years her senior, was a protective presence. Lewin remembers the excitement of visiting her older sibling in New York City when she was in college at Barnard. When Lewin, who is now 58, later moved to the city, her big