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Vivien Killilea/Getty Images for Alex's Lemonade Stand Foundation
Although the Parenthood alum knows that "one of the things that you're not supposed to do is get sober for somebody else," his relationship with now-wife Melanie Lynskey was a major reason that led him to swearing off alcohol.
"At a point, I knew how amazing she was and I thought she would be incredible for someone who deserved her," he explained during a March 2023 appearance on The Drew Barrymore Show, "and I didn't feel like I was that person. I felt a little bit too crazy."
However, as Ritter noted to E! News during a Sept. 23 interview, he now sees that sobriety is ultimately a personal choice.
"It was easier for me to say that I'm doing it for her because, at that time, I didn't feel like I was sort of worth much," he recalled of the early days of their relationship. "I didn't care as much about hurting myself as I did about hurting her. So, initially it was easier for me to say, 'I'm doing this for her.' And now, I'm doing it for myself."