The song "Allergic" by HAVEN is about a toxic and unhealthy relationship. The narrator is expressing her frustration with a partner who only wants her when it's convenient for him and doesn't treat her with respect. She feels suffocated and trapped in the relationship, hence the use of the metaphor that she is allergic to her partner's behavior. The lyrics mention the partner's lies, inability to commit, and insecurities. The narrator realizes that she doesn't need this kind of relationship and encourages her partner to find someone else. The song ends with a direct message to the partner, telling him off and expressing her anger towards him. Overall, "Allergic" is a powerful and empowering song about standing up for oneself and leaving toxic relationships behind. It reminds listeners that they deserve to be treated with love and respect and should not settle for less.