I love this song. She is saying to her lover that she finally sees him for what he is. His true character has become crystal clear to her. He played with her emotions and now she is over it. She is warning him not cross her she will lay his ship/s*t bare. She is telling him to walk away and to do it quietly without making any type scene or she will tell all that she knows about him. She says that she has no story top be told. So what ever he thinks he has on her, it pales in comparison to what she has on him. She is warning him to tread very carefully because she will make him sorry of he crosses her. She is daring him to make her angrier.