"Combustible" is a darkly romantic confession wrapped in dreamy French pop. Coeur de Pirate sings from the perspective of someone who feels both rescued and doomed by love. She remembers meeting her partner when she was “fragile” and tired of “fabulous lies,” yet their gaze pulled her out of deep emotional holes. Despite that salvation, she keeps warning her savior about the “monsters” hiding in her heart, creatures that surface after midnight and make her restless, destructive, and, in her own words, combustible – ready to ignite at the slightest spark.
The chorus becomes a plea: “You can’t change me, I’m a broken being… let the night fall, let me drown my sorrow.” She knows her nature is unruly and fears hurting the person she loves, so she asks them to let her go before she burns them both. Ultimately, the song explores the tension between yearning for love and fearing one’s inner chaos, painting a vivid picture of passion that is as explosive as it is heartbreaking.