Razorblade by The Strokes delves into the complexities of romantic relationships, focusing on the pain and confusion that comes with love. The song explores themes of heartbreak, emotional turmoil, and the dichotomy between love and pain. Key moments in the song highlight the singer's realization of being caught in a love that causes deep emotional scars, much like a razorblade. The raw and candid lyrics illustrate the internal struggle of wanting to hold onto a relationship that is both alluring and damaging.