In "Becoming Warren Buffett," the family speaks of how thankful they were that Astrid Menks stepped into their father's life after their mother moved out in the early 1980s, though she never divorced Warren. Susie said that it wasn't as seamless as it appeared.
"There were absolutely growing pains," she said. "I knew Astrid before my parents did. So, yeah, that’s a strange little part of it. It was very funny. My problem with it at the time was that I am very close to my dad and, as my mother says in the film, he can't find the light switch. I was just worried that he wouldn’t know how to eat, how to cook any food. He just doesn’t know how to function, except go to work. I think it’s fair to say I was a little bit mad at my mother about leaving. I didn’t quite get why she was leaving. I was concerned about him being able to function in the normal world."
Susie said that she actually moved back home to Omaha for a month because she worried about her father.
"I had some trouble with it, for sure," she said of Astrid moving in. "My mother and I had many talks over the years about it and my understanding certainly evolved over the years and changed. And I totally got it eventually."