Meaning of "I Should've Known Better" by Nickel Creek

The song "I Should've Known Better" by Nickel Creek captures the raw emotions of heartbreak, regret, and realization after a relationship falls apart. The lyrics detail the journey from initial infatuation to the painful acceptance of the truth about a toxic love. The singer expresses a sense of betrayal and disappointment, acknowledging that they should have recognized the warning signs sooner. The imagery of a cup of cold coffee and yesterday's mail symbolizes the stagnation and sense of loss that comes with a failed relationship. The repetition of the lines "My heart sank when I read that letter, It sank like a stone" emphasizes the profound impact of the breakup on the singer. Ultimately, the lyrics convey a sense of clarity and closure as the singer decides to let go of a love that brought them nothing but pain.