Born in Charleston, South Carolina, she was the fifth of six children born to the Halakhist Rabbi Dr. Nahum Rabinovitch. The family later moved to Toronto for a short period before settling in London. Rabinovitch was educated at Hasmonean High School, Henrietta Barnett School, the London School of Economics (International Relations, 1993) and the University of East Anglia (MA Creative Writing, 2000).
Rabinovitch, who died of breast cancer on 30 October 2007, aged 44, wrote regular columns describing her cancer-related experiences. These columns were published as the book Take Off Your Party Dress in March 2007. Proceeds from the sale of the book go to the CTRT Appeal , a million-pound appeal to set up a cancer trials research centre at Mount Vernon Hospital in London.