The song "You're So Last Summer" by Delaney Jane is about a toxic relationship where the narrator is clinging onto someone who treats her poorly. The first verse features the narrator being insulted by her partner, who calls her overrated and a lush, but she still holds onto the hope that she is someone her partner will miss when she is gone. The chorus reflects the narrator's conflicting feelings towards her partner. She wonders if she should hate them for the mistreatment, but never gets to that point because she hasn't fully let go of the relationship. The second verse shows the narrator's intense loyalty to her partner, even imagining apologizing for bleeding on their shirt if they were to harm her. However, the bridge reveals that she is also aware of her own flaws, being a "wishful thinker with the worst intentions." The song ends with the narrator aware that she needs to move on from the relationship, giving her partner one last chance to acknowledge her before she lets go. Overall, "You're So Last Summer" is a powerful portrayal of the cycle of toxicity and the emotional struggles that come with letting go of a harmful relationship.