The lyrics of "Nobody's Perfect" by Jessie J revolve around the theme of making mistakes, learning from them, and seeking forgiveness. The song is essentially a heartfelt apology to someone she deeply cares about. The protagonist admits that when she is nervous, she tends to talk excessively, often without considering the consequences. She acknowledges that she tends to overshare her emotions with anyone who will listen, and this habit ends up causing problems in her relationships. Despite her unintentional actions, she wants to emphasize that she never intended to hurt the person she's addressing in the song. She recognizes the need to learn from her mistakes and treat her loved ones the way she wants to be treated. She realizes that the trust between them may be compromised and expresses regret for letting them down. The protagonist reflects upon her actions and vows to change in order to keep the person she cares about in her life. She promises to make efforts in the future to avoid similar mistakes and keep their bond strong. Throughout the song, Jessie J repeatedly emphasizes that nobody is perfect. She admits that she is not a saint and acknowledges her faults. However, she asserts her commitment to never repeat her past actions and improve herself. The lyrics convey a sense of remorse, self-reflection, and the desire for forgiveness. It's a sincere plea for understanding and a reminder that everyone makes mistakes.