The song opens with the lines, “What we had was magic / Now you’ve made it tragic,” immediately setting a tone of nostalgia mixed with sorrow. The narrator reflects on the beauty of their past relationship, which has now been tainted by betrayal. The use of the word “magic” suggests that their love was once something special, but the subsequent shift to “tragic” highlights the emotional devastation caused by infidelity. This juxtaposition of emotions is a powerful way to convey the complexity of heartbreak.

As the lyrics progress, the narrator confronts the reality of her partner’s actions: “Giving her what you gave to me / Now the well that you drank from’s empty.” Here, the imagery of an empty well symbolizes the depletion of love and trust in the relationship. The narrator feels a sense of loss, not only for the love they shared but also for the emotional resources that have been exhausted due to her partner’s betrayal.

The line “Your weakness made me lonely / Unholy matrimony” further emphasizes the pain of feeling abandoned and betrayed. The term “unholy matrimony” suggests that the relationship, which should have been sacred, has turned into something toxic and damaging. This phrase encapsulates the narrator’s feelings of disillusionment and anger towards her partner’s actions.

The chorus is a powerful declaration of independence: “Oh I, I want you to leave / I don’t even wanna breathe the air you breathe.” This repetition underscores the narrator’s desperation to sever ties with her ex-partner. The intensity of her emotions is palpable, as she expresses a willingness to cut all connections, even to the air he breathes. This line captures the essence of her pain and the desire to reclaim her space and identity.

The subsequent lines, “I’d rather die / Than let you be inside me with her on your mind,” reveal the depth of her hurt. The imagery of physical intimacy juxtaposed with emotional betrayal highlights the profound impact of infidelity. The narrator refuses to allow her ex-partner to occupy any part of her life, especially when he is emotionally tied to someone else. This assertion of self-worth is a crucial theme throughout the song.

As the song continues, the narrator grapples with her feelings: “How’d this even happen / I can just imagine / I wanna know then again I don’t.” This internal conflict showcases the struggle of wanting closure while simultaneously fearing the pain that comes with it. The line “I make heartbreak look damn easy” suggests a sense of resilience, as if she is trying to portray strength despite the emotional turmoil she is experiencing.

The repetition of the chorus reinforces her determination to move on: “I am stronger on my own / So hold on / I’m letting you go.” This declaration of strength is empowering, as the narrator acknowledges her ability to thrive independently. The song concludes with a reiteration of her desire for her ex to leave, solidifying her resolve to break free from the chains of a toxic relationship. Overall, “Leave” is a powerful anthem of self-empowerment, capturing the emotional journey of heartbreak and the strength it takes to move forward.