The lyrics to "With Every Heartbeat" by Girls Aloud depict a sense of longing and desperation within a relationship. The song talks about the possibility of making things right and better someday, but ultimately realizing that no matter how much effort is put in, things will never change. The protagonist acknowledges the pain and struggles they face with every step they take and with every beat of their heart, symbolizing the emotional toll the relationship has on them. Despite the hurt, they choose not to look back and carry on with their life. The lyrics also express the desire to find some kind of happiness and fulfillment within the relationship, questioning if it would make their partner happy as well. However, they understand that even if they continue to try, things will never truly change. Overall, "With Every Heartbeat" portrays a bittersweet realization that despite the pain and effort invested in a relationship, sometimes it is necessary to let go and move forward for one's own well-being.