Elizabeth Edwards says that whether she still is in love with her husband, former presidential candidate and US Sen. John Edwards, after his admitted affair is a “complicated question.” In an episode of “The Oprah Winfrey Show” to air Thursday, Winfrey asked Edwards, “Are you still in love with him?” in an excerpt provided in advance to AP by Harpo Productions. Edwards responded, “You know, that's a complicated question.” Winfrey also asked Edwards, “Is it a day-by-day thing?” And Edwards said, “Neither one of us is out the door so I guess it's day by day, but maybe it's month by month.” Winfrey interviewed Elizabeth Edwards about her relationship with her husband, his affair and her battle with terminal cancer. Besides the TV interview, there will be a companion piece in the June issue of “O” magazine. A Harpo spokeswoman said the only caveat to the interview was that Winfrey could not mention John Edwards' mistress by name. Edwards wrote in her memoir that news of her husband's affair made her cry, scream and throw up in a bathroom. She told Winfrey she had asked her husband for one gift when they were married 31 years ago. “I wanted him to be faithful to me,” Edwards said. “It was enormously important to me.”