With the fact Fey had carried a long-term affair with Bradford Meade, Amanda worried Bradford may be her biological father since it would mean she had committed incest by sleeping with Daniel, who would be her half-brother.
With the truth that Fey had been involved in a long-term relationship with Bradford Meade, Amanda was concerned that Bradford might be her biological father because it would imply she committed incest by sleeping with Daniel, who would be her half-brother.