In "My Bestie Lies About Everything," the protagonist grapples with her best friend's constant dishonesty. Initially, she overlooks the small lies, but as they escalate, she starts to feel betrayed and confused. The story follows her journey of confrontation, where she discovers the reasons behind her friend's deceit—insecurities and a desire for acceptance.

As the protagonist navigates the fallout, she must decide whether to continue the friendship or prioritize her own well-being. In the end, she chooses honesty and sets boundaries, emphasizing the importance of trust in relationships. This leads to a deeper understanding between them, allowing for personal growth on both sides.