Olivia Rodrigo says seeing her ex-boyfriend with another girl 'felt like my world was ending almost every day'

• Olivia Rodrigo opens up about heartbreak in her new Disney+ documentary "Driving Home 2 U."
• Much of her acclaimed debut album "Sour" was inspired by a breakup that occurred in early 2020.

Olivia Rodrigo opens up about heartbreak in her new Disney+ documentary "Driving Home 2 U," out Friday, which delves into the making of her debut album "Sour."

In one clip from March 2021, Rodrigo is shown in the studio with her producer and cowriter, Daniel Nigro. To her chagrin, he plays the first song they wrote together.

"Crying in the parking lot / You don't know what you want," Rodrigo sings in the unreleased demo. "Gave you everything, I guess everything ain't enough / You say you lost your best friend / How do you think I feel? / You say it's over again / And this time it's real."

"Oh my god, I was so sad," Rodrigo says. "I remember that day. I was so fucking sad."

When Nigro comments that it was "almost a year ago," Rodrigo replies, "And I'm still not over it."

The documentary then jumps to a montage of clips with a voiceover by Rodrigo, who describes her previous relationship as "the heartbreak that kept on giving."

"I was in this situation where I had to see him and he was with someone else, which was devastating to me," she explains. "It felt like my world was ending almost every day."

"Nobody understood how I was feeling or related to it," she continues. "And so I think by writing songs about exactly how I felt, I was creating, like, a friend for me."

Rodrigo's debut album "Sour," released last May, has been widely hailed as a masterful depiction of first love and loss. It debuted at No. 1 on the Billboard 200 and was named the best album of 2021 by Insider. It also earned Rodrigo seven Grammy Award nominations, including album of the year.

Many fans believe Rodrigo was inspired by a relationship with Joshua Bassett, which has been widely speculated but never confirmed by either artist.

The two costar as romantic interests on the Disney+ show "High School Musical: The Musical: The Series." In a GQ profile last December, Bassett strongly hinted that he and Rodrigo dated in real life.

"People don't realize how long ago that was," he continued, seemingly referring to their romance. "It's not as recent as it seems. I'm a completely different person now."

He also said Rodrigo hadn't spoken to him since the release of "Drivers License," the album's popular lead single, which dropped in January 2021.