Shawn Mendes regrets break up with Camila Cabello in new song: Watch

Shawn Mendes is  opening about his feelings after breakup with Camila Cabello.

In his new track When You're Gone, the 23-year-old is visibly yearning for the 'only girl that matters'

months after calling it quits with the Havana songstress.

You never know how good you have it, oh/Until you're starin'

at a picture of the only girl that matters, aah," go the lyrics of the song.

Hold on/I don't wanna know what it's like when you're gone/I don't wanna move on/I don't wanna know what it's like when you're gone for good,

he sings in the chorus, seemingly referencing his recent split.

You're slipping through my fingertips/A little bit, by a little bit/I didn't know that loving you was the happiest I've ever been/So I'm just tryna hold on."