Record telephone conversations until she gives up. Dont tell her you are recording. Antagonise her until she makes a threat to make a false complaint. Go along the lines of: "You dont have the balls to make a false accusation because you are a weak obsessive insecure bitch". Any threats she makes will back fire if she follows through with them and makes a false police report.

Your mate can simply playback the tape to the cops and presto. She will get a right kick up the ass by the law.

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RS Liberty - Because WRX's are only good for parts...