Selena Gomez is reportedly terrified about ex-boyfriend Justin Bieber's upcoming album.

In an interview with Ryan Seacrest on April 2, the Canadian pop star revealed that his new music is inspired by his on-again, off-again relationship with "The Heart Wants What It Wants" crooner.

"A lot of my inspiration comes from her," he said. "It was a long relationship and a relationship that created heartbreak and created happiness and a lot of different emotions that I wanted to write about, so there's a lot of that on this album."

With that being said, Gomez hopes Bieber does not insult her, as well as her romance with her "I Want You to Know" collaborator and new beau, Zedd, in his forthcoming record, according to HollywoodLife.com.

"That would just be absolutely mortifying," an insider said. "They barely speak, and she doubts he's going to let her listen to his music before it's released."

In addition, the real reason the young couple split for good was recently revealed.

According to Life & Style via HollywoodLife.com, their very last argument caused them to call it quits.

In an effort to save their unstable relationship following their breakup in October 2014, the pair allegedly went to a Tiffany & Co. store in Beverly Hills last December to check out engagement rings.

An eyewitness recalled that when a bystander at the store asked the two if they would get married one day, Selena replied that she hoped it would happen. 

On the other hand, Bieber was "mouthing the word 'No,' and he motioned with his hand to his throat like a 'cut it out' sign, while shaking his head."

As a result, Gomez and Bieber reportedly ended up not buying the rings and blew their one last shot.