In an interview with Sam Fragoso on NPR, Woody Allen opened up about a topic he rarely discusses: His controversial relationship with wife Soon-Yi Previn. Previn, who is 35 years younger than Allen, was the adopted daughter of Allen’s ex-partner Mia Farrow. Allen started dating Previn while he was still in a relationship with her mother.Asked about his thought process when initiating the relationship with Previn in the late '80s, Allen said: “I started the relationship with [wife Soon-Yi Previn] and I thought it would just be a fling,” Allen told interview Sam Fragoso.