Songfacts®:

• "Back When You Were Mine" is a tender, unguarded ballad where The Kid Laroi looks back on a past relationship. He sings about having "spent all of my money on you" and declares he "probably would've died for you." This is the ache that sets in later, having realized the intensity was real even if the ending wasn't kind.
• Written and released in the months following Laroi's July 2025 split from Tate McRae, the song is read as drawing from that relationship, much like "A Cold Play." As on that earlier track, Laroi avoids naming names, preferring implication to accusation. Still, the breadcrumbs are there.
  
  Tell them anything you like
  But the truth, that's a whole 'nother thing
  
  After "A Cold Play" cast Laroi as the wounded party, McRae answered with "Tit For Tat," where she suggested she briefly considered reconciling before deciding his behavior - moving on too quickly, among other things - made that impossible. Against that backdrop, "Back When You Were Mine" feels like a refusal to litigate the breakup any further. Rather than rebutting her version of events, Laroi signals that he no longer cares how the story is being told, only that he remembers how it felt.
• Laroi wrote the song with producers Daniel Aged and Zack Sekoff, two Los Angeles–based musicians who operate in a left-of-center pop and R&B space.
  
  Daniel Aged came up as a teenage session and touring player with artists like Raphael Saadiq and John Legend, and later co-founded the duo Inc. No World with his brother Andrew Aged. He has contributed production, composition, or instrumentation to music by Frank Ocean ("Cayendo"), Rosalía ("LLYLM") and others, while also releasing solo material and running the Chiron Sound Ltd. label.
  
  Sekoff moves in a similarly jazz-adjacent, forward-thinking orbit and has helped shape hits for Tinashe, including "Nasty" and "No Broke Boys."
• The song closes out Before I Forget, Laroi's second album. After a record built on reflection, regret, and emotional recalibration, "Back When You Were Mine" functions as a final glance in the rear-view mirror, a softer companion to earlier album moments that wrestle with loss more loudly.
• Laroi said he scrapped an entirely finished album to start again from scratch, keeping only one song. The result, he claims, is his most personal work yet. That context makes "Back When You Were Mine" feel like a thesis statement: love mattered, the pain mattered, and the act of remembering is part of growing up. While "Without You" captured the hurt of losing someone in real time, this song is about what happens after the dust settles, when all that's left is memory, and the faint echo of who you were back when they were still yours.
• "Back When You Were Mine" started as a synth-driven idea with four-on-the-floor drums, but Laroi stopped the session and suggested a complete rethink, pushing it toward a stripped-back, acoustic arrangement inspired by Babyface. By swapping electronics for guitar and intimacy, he turned the song into something more reflective and emotional.
  
  Laroi told iHeartRadio that writing it was "100%" therapeutic - a way to get his thoughts down and work through the fallout of the relationship rather than just relive it.