Lisa explained: "She never hit him after that. Over the years, he and Patsy came to have a much better relationship. Patsy could be extremely critical and negative. But she figured out that if she was going to be around us, she needed to be a little nicer, and that's what she did."
Patsy, 86, died four years after Patrick in 2013 but Lisa says they never discussed the physical violence.
She said: "I think she would say, 'Well, you know, sometimes I could be strict, I'm that kind of a teacher'. She was a complicated woman, intense and an amazing life force. Patrick absolutely loved and respected her."
Lisa also praised her husband for how he handled his battle with pancreatic cancer.
She said: "The amount of lovingness and kindness, I saw wisdom in him that was beyond anything I'd seen before."
-Bang! Showbiz