The pair have called it quits after giving their relationship a go for a second time back in April.
A source tells ET that the two gave things a try but that ultimately, the timing wasn't right for either of them.
"Shawn and Camila broke up and are no longer seeing each other," the source says. "They gave things a try, but ultimately the timing isn't right for either of them. They're both staying busy and doing their own things."
Rumors of split began earlier this month. And while it's over between the pair, Mendes and Cabello were last seen together as late as May 30, when they attended a Taylor Swift concert. The duo were not shy about displaying PDA either, dancing and sharing a kiss as they took in the show.
Mendes, 24, and Cabello, 26, previously dated for two years, but mutually announced their split in November 2021. Amid their separation, Cabello dated Austin Kevitch, before calling it quits in February.
Just two months later, the "Havana" singer was spotted locking lips with Mendes at Coachella.
"Camila and Shawn were talking and spending time together for months before Coachella," a source told ET following the pair's loved-up moment. "They always had a lot of love for each other, even while they were broken up. They still care about each other."
Cabello inspired even more interest when she teased a song that seemed to allude to the rekindled romance.
"Shawn and Camila aren’t officially back together, but they are enjoying each other’s company and seeing where things go," a source told ET shortly thereafter. "When they met up and kissed at Coachella, they were having fun and being in the moment together. They are both attracted to each other and care about one another a lot. They are having fun."
Titled "What the Hell Are We Dying For?," Mendes co-created the song in practically 24 hours and revealed he would also be donating to the Canadian Red Cross.
In an interview with Zane Lowe on Apple Music 1, the performer explained that he'd written the track while struggling with feelings about his love life, among other things.
"I think I am approaching 25 still feeling quite confused about a lot of things in my life. And I think that was expressing that feeling of frustration about what is happening, this feeling of swinging the pendulum back and forth…," Mendes, who turns 25 in August said.
The Toronto native continued, "I think I still am in a very confused place, but I know that there are some people in my life who I deeply love, and I know that music is something I deeply love, and I know that this planet is something I deeply love. And all of those three things are something worth fighting for and worth dying for. And I think that was where that energy was coming from."
Cabello, meanwhile, is reported to be dating again amid the pair's short-lived romance.