"John Stamos Opens Up About Heartbreaking Betrayal: Caught Girlfriend Cheating with Tony Danza"

John Stamos reveals in his upcoming memoir that he was devastated after finding his ex-girlfriend, Teri Copley, cheating on him with actor Tony Danza. Stamos describes the incident as physically painful and emotionally overwhelming. Although he initially didn't recognize Danza, he later discovered a saucy poster signed by Copley to Danza, confirming their affair. Stamos partially credits Danza for the success of "Full House" as it followed Danza's hit series "Who's The Boss?" in the same timeslot. Stamos' memoir, "If You Would Have Told Me," will be released soon.