Im getting harassed at work!! What do I do?

Im a independent contractor can I still sue. Im a massage therapist and one day as I was working on a client he touched my breast! I let him no that was not okay, ended the session. And i told my boss and her only response was that i was ling and that the client was her friend for 30 years. Then the client confessed that he had touched me and the owner didn't care and was even mad that I had gotten a tip from the client. What can I do? This was just one of the many abuses, shes done to me.