Selena Gomez has returned with a heartbreaking single, and fans are convinced it's about Justin Bieber

Selena Gomez's new single, "Lose You to Love Me," details a tumultuous romantic relationship that ultimately ends up in loss.

Though it's been five years since the pop star opened up about her former boyfriend Justin Bieber through her music (in "The Heart Wants What it Wants"), the lyrics of her new release have fans convinced she's not done discussing him.

The pair's on-again-off-again relationship, referred to by many as "Jelena," spanned nearly a decade before Justin Bieber married another longtime on-again-off-again flame of his: Hailey Baldwin. While the marriage was celebrated by some, many others believed Gomez was Bieber's soulmate and criticized him for moving on so swiftly.

In decoding the lyrics of Selena's new single, which was accompanied with a solemn black and white music video, one line has fans caught up in particular. It reads: "In two months, you replaced us / Like it was easy / Made me think I deserved it."

Another line many are speculating over reads: "Set fire to my purpose / And I let it burn." "Purpose" is the title of Bieber's last album, which he admitted was largely inspired by Gomez back in 2015.

Here are some fan reactions to Gomez's new single, and the connection they see between the lyrics and her and Bieber's heartbreaking saga.

Gomez also released a statement regarding the song and video, which said in part:

"This song was inspired by many things that have happened in my life since releasing my last album... I thought it was important to share the music, as I know many can relate to the fact that the road to self-discovery generally comes through the scars in one’s life. I want people to feel hope and to know you will come out the other side stronger and a better version of yourself."