I work with an employee,who I have trained and helped. She comes to me on friday and says why i fixed some names on the sorting bins. Her question was answered. I am not a supervisior,or a lead clerk,I am a mailroom clerk. My boss had no problem with

I work with an employee,who I have trained and helped. She comes to me on friday and says why i fixed some names on the sorting bins. Her question was answered. I am not a supervisior,or a lead clerk,I am a mailroom clerk. My boss had no problem with me fixing the bins correctly.She also lied about me not helping her. And put rumors upsatirs about me?ALSO SHE SAID IT INCONVIENCE TO HER/