CHICAGO (AP) -- Elizabeth Edwards tells Oprah Winfrey that it's a "complicated question" if she's still in love with her husband after his admitted affair.

Edwards is to appear on "The Oprah Winfrey Show" on Thursday as her book "Resilience" is published this month. Winfrey visited the Edwards home in Chapel Hill, N.C., where the couple live with their children, for an interview with both Elizabeth and John Edwards.

In the interview, Elizabeth Edwards describes her relationship with her husband as "day by day, but maybe it's month by month." She also speaks with Winfrey about her ongoing battle with cancer.

John Edwards acknowledged the affair last year, months after dropping his presidential bid.

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