She was the second wife of artist Roy Lichtenstein, from 1968 to his death, in 1997.

Lichtenstein was born in the Crown Heights section of Brooklyn, New York City, on October 26, 1939[3] to Mathilda Thelma (Berkowitz) Herzka and Lloyd Herzka, a municipal judge.

[4] After studying art history at Arcadia University Dorothy returned to New York City in the early to mid 1960s and became the director of the Paul Bianchini Gallery on 57th street.

While at the Bianchini Gallery in the mid-1960s she met and eventually married Roy Lichtenstein in 1968.

She died at her home in Southampton, New York on July 4, 2024, at the age of 84.