Now, an insider close to Clarkson is revealing to the Daily Mail how she allegedly reacted to the situation when she discovered her former assistant, Brittney Marie Jones, was in a relationship with Blackstock. The source described the fallout as “just the icing on the cake of the disappointment [Clarkson] felt over the delusion of their marriage.”

A source said Blackstock “chose to move on with someone Kelly knew and trusted,” which “just adds to the person he ended up being to her.”