Jon Cryer recently opened up about his past relationship with Demi Moore, revealing that he was unaware of her drug addiction during their time together. The actor, who co-starred with Moore in the 1984 film "No Small Affair," shared that their brief relationship ended shortly after he discovered her addiction just two weeks before filming wrapped. Despite Moore's charismatic charm, Cryer was fooled by her hidden struggles. The two reunited at the premiere of "BRATS," a documentary about the Brat Pack, a group of '80s actors who faced their own battles with addiction. Moore, like many of her peers, struggled with substance abuse issues and spent time in rehab at the urging of a director. Despite managing to stay sober for nearly 20 years, Moore later faced a relapse. The Brat Pack, including other members like Robert Downey Jr. and Rob Lowe, also grappled with addiction issues.