In The Times interview, Guy Chambers acknowledged that Robbie Williams was the first true addict he had ever worked with, so the producer was understandably ill-equipped to handle the strains of their professional relationship. Chambers shared that the singer was often a no-show at recordings, and they frequently had to send people to find him at local bars. Sometimes, Williams even showed up to the studio inebriated. Nonetheless, the duo persevered through it all, but things took a turn for the worse when Williams moved to Los Angeles in 2002, and Chambers didn't follow him to stay close to his family. 

Then, Williams wrote "Come Undone," a track that he believed was a masterpiece. But Chambers wasn't a fan of the song and suggested some changes, which didn't go down well with the pop star. Chambers explained that his dislike of the track exacerbated Williams' trust issues, which ultimately broke down their strong foundation. When the fallout happened, media outlets reported that Williams wanted Chambers to exclusively sign with him, amid rumors he was working with the singer's Take That rival, Gary Barlow, but the producer refused. 

Chambers hinted at the truthfulness of these reports, noting, "He quite rightly thought I wasn't prioritizing him, and if you consider how massive he was, that was stupid of me — I regret that I did not just prioritize him." The producer also recalled, "I have had times when I wanted to walk out, but the music kept me. ... I really struggled." 

If you or anyone you know needs help with addiction issues, help is available. Visit the Substance Abuse and Mental Health Services Administration website or contact SAMHSA's National Helpline at 1-800-662-HELP (4357).