"I haven't relapsed in drugs and alcohol," she says. "That's something that I'm very proud of. I'm coming up on five and half years of sobriety, and that's something that's been difficult at times, but one thing that I haven't fully conquered is my eating disorder."
We then see Lovato in the back of a car with McIntyre, whom she tells that "a few nights ago" she had relapsed -- bingeing and purging -- triggered because she started to miss Wilmer.
"When I was in a relationship with Wilmer, I went three years without purging," she continues. "When we broke up, that's one of the first things I did. When I feel lonely, my heart feels hungry, and then I end up bingeing, and I don't know how to figure out how to be alone."
Lovato says that her first addiction was food, she is constantly thinking about food and she is envious of the people who don't have to struggle with an eating disorder.
Demi Lovato Sings the National Anthem at Super Bowl 54 in Miami.
A week before the sporting event, Lovato debuted her new single, "Anyone," with a tearful performance at the Grammy Awards.
The song features lyrics that touch on her past struggles with substance abuse and loneliness, which Lovato has been candid about. She was hospitalized in July 2018 after an overdose.
Now sober, Lovato shared her excitement about being selected to perform at the Super Bowl in tweet just hours before she took the field. The singer shared a post from 2010 in which she had written, "One day, I'm gonna sing the national anthem at a super bowl. Onnnee dayyy."