Rumer Willis’ ex Derek Richard Thomas has accused her of exploiting their 3-year-old daughter, Louetta. In court documents obtained by Us Weekly, Thomas denied allegations of abuse made by Willis in a recent declaration in opposition of his child custody order. He went on to claim that Willis, 37, exploited Louetta when their daughter appeared in a commercial. “Respondent’s coordinated media strategy and its harm to Louetta are a serious concern,” Thomas’ declaration read.