Did Cesar Milan cheat on his wife or did she cheat on him?

Cesar Millan and his then-wife, Ilusion Millan, announced their separation in 2010 after 16 years of marriage. There were allegations of infidelity on both sides, but specific details about who cheated first have not been definitively established. Ultimately, their separation was attributed to various personal and professional challenges, rather than solely one person's infidelity.