She's been partying heavily recently.
Demi attended her backup dancer's birthday party on Monday, July 23, and the after-party at her Hollywood Hills home where the overdose took place. But it apparently wasn't the first time she's been partying. "She's been heavily using and her friends have been very worried that this was going to happen," a source close to the singer told E! News.
Demi parted ways with her sober companion & life coach, Mike Bayer.
The pair had been working together since her first intervention in 2010, but parted ways in July 2018. Rumors began circulating after the coach shared a video about artists using their art to excuse bad behavior. Fans also took notice and said that Demi unfollowed Mike on Instagram in June.
Demi apparently shaded Mike on Twitter.
The same day Coach Mike shared the vlog, Demi seemingly shaded him on Twitter, writing: "Good luck on your blog." The pair co-founded the CAST Center together, which is a wellness, mental health, and addiction treatment center.
She was distancing herself with people who helped her get clean years ago.
Prior to the overdose, she also reportedly fired longtime manager Phil McIntyre, who was the guy behind her first intervention in 2010 and helped her get treatment for her drug use.
She was spotted going out more often.
Demi got together with some former Disney Channel stars at a party in April 2018, but a photo from the event had fans wondering what was in her cup. She responded: “I don’t have to defend anything but it was Red Bull.”
Her breakup with Wilmer Valderrama deeply affected her.
The couple split in June 2016, after six years together. Demi opened up about how that affected her in her 2017 documentary, Simply Complicated. She revealed she began binge eating again after the relationship ended, because she relied on him to deal with her loneliness. "I never loved anybody like I loved Wilmer, and like I still love Wilmer," she said in the documentary. She also said that she relapsed with her eating disorder because she missed Wilmer. "When I was with Wilmer I went three years without purging, and when we broke up, that's one of the first things I did," she recalled in the documentary. "And when I feel lonely my heart feels hungry and then I end up binging.
While most celebs just sent well wishes on social media, Wilmer was by her side.
Celebrities sent her their love on Twitter and Instagram but Wilmer rushed to her side. It was reported that although the That's 70s Show actor kept mum on social media following the overdose, he was spotted entering Cedars-Sinai Medical Center on Wednesday, July 25, where Demi is reportedly being treated.