Meaning of "Once Upon a Time" by Mr. Big

The lyrics of "Once Upon a Time" by Mr. Big explore themes of betrayal, manipulation, and empowerment in the context of a toxic relationship. The protagonist begins by reminiscing about a time when things seemed perfect, but quickly realizes their partner's true nature when they lose their mind and reveal a dark side. The partner's deception and manipulation become clear, leading to heartache and the need to escape the toxic dynamic. The narrator experiences a moment of clarity and decides to take control of the situation, refusing to be a victim any longer. The song serves as a reflection on the importance of recognizing the signs of toxicity in relationships and reclaiming one's power and agency.