Cesar and Ilusion Milan have offered no information to the public about the cause of their divorce, as of 2015. According to official legal documents, Ilusion Millan filed for divorce from her husband due to irreconcilable differences of an unspecified nature.
At the time of their divorce, Cesar and Ilusion had been married for 16 years and had two sons together. One month prior to the filing, Cesar lost his pet of 16 years, a pit bull named Daddy, to cancer. In May 2010, Cesar Millan also attempted suicide due to the stress of his ongoing divorce and financial instability.