In an interview with People, Perry revealed that her 2017 split from Bloom inspired the track. "It's a song that really talks about how intense it's gotten and how many things we have had to go through. Yes, we have problems. Everybody has challenges in a relationship," she explained. "If it's a real relationship, it's going to challenge you into your best self. I really understand what Justin Timberlake said about, 'You're my mirror,' because it's true. They bring up all this stuff you can't really see about yourself."
She continued, "It's a never-ending evolution, so it's not peachy-keen jelly bean all the time, but it's nice to have been able to show each other all the good, bad, and everything in between, and really fight for our best selves. Now, we just joke, like yeah, we still have things to work out — but champagne problems! We've gotten through a lot of hell."