"Because of my situation right now… I feel like I go back and listen to a lot of that stuff and I'm, like, I get sick," the mother-of-three shared. "You look at the songs and go, 'That was a red flag!'"
Her new music, however, might be one of the biggest upsides to her breakup. Stefani, who just released a new ballad titled "Used to Love", shared that heartache has always lead her to making some great music.
"In my life, I've had two really bad heartbreaks and I've written some really incredible music out of it," Stefani said. "I feel so lucky to have that, and to be able to share it."