This piano-driven ballad finds Olivia Rodrigo expressing her feelings of betrayal as she watches her ex move on with another girl. You talked to her when we were together Loved you at your worst but that didn't matter It took you two weeks to go off and date her Guess you didn't cheat, but you're still a traitor Rodrigo had her suspicions about his new girlfriend. Though her ex went a fortnight after their breakup before asking her out, she still feels emotionally cheated on.

Rodrigo recorded the song for her debut album, Sour. It is one of several tracks that linger on her feelings when an ex steps into a new relationship. Others include the singles "Drivers License" and "Deja Vu ."

When Olivia Rodrigo released Sour, "Traitor" started trending, with many fans speculating she is addressing her rumored ex-boyfriend, Joshua Bassett. Rodrigo is believed to have dated her High School Musical: The Musical: The Series co-star during the filming of the show in 2019 before splitting in early 2020. Things allegedly didn't work out and Bassett was then linked to Girl Meets World star Sabrina Carpenter.