The song "Tester" by Hinds is about a girl who is in a complicated relationship with a guy who is also seeing someone else. The protagonist feels confused and uncertain about their relationship and is constantly questioning whether she should have known about the other girl. The lyrics describe how the protagonist is on her knees, begging for answers and wondering why she was brought into this situation. She feels like she is being tested by the guy because he is not fully committed to her, but he keeps coming back to her. Despite her confusion and frustration, the protagonist is still drawn to the guy and struggles to let go of their relationship. The song has a catchy, upbeat melody that contrasts with the complex emotions of the lyrics. The chorus emphasizes that the protagonist and the guy are "just having fun," but her feelings for him are deeper than that. The song ends with the protagonist still struggling to understand her relationship with the guy and hoping for clarity and closure.