"I have three living children for whom this is a father I want them to love and on whom they're going to have to rely perhaps if my disease takes a bad turn," Elizabeth Edwards said.
Elizabeth Edwards said their new parenting dynamics are "going pretty well." Two of their children are still preteens.
John Edwards has acknowledged fathering a child with his mistress as he campaigned for president. Elizabeth Edwards said the decision to end the marriage was difficult because she had leaned on him for so long.
"I was going to be on my own in a way that I maybe hadn't ever really been, and that was pretty terrifying, particularly facing a disease, young children and a fairly uncertain future," she said.