Original sentence: Magda soon grew bored in her marriage with Quandt , who didn't spend much time with her and at the age of 23 she became attracted to her 18 year old stepson Helmut Quandt  (who died of complications from appendicitis in 1927)
Edited sentence: At 19 she reportedly had remarkable poise and presence.In Berlin, one of her closest friends was Lisa Arlosorov (whose parents were Russian Jews) and Magda started a long affair with Arlosorov's brother (Chaim Arlozorov), an ardent Zionist who was later assassinated in Palestine.Magda soon grew bored in her marriage with Quandt  , who didn't spend much time with her and at the age of 23 she became attracted to her 18 year old stepson Helmut Quandt   (who died of complications from appendicitis in 1927)