I'm being harassed at work

About 2 months ago, I opened up to a woman at work about myself. She's great. She recently left the call center where we work together and in the last couple days a coworker of mine has said that she told him about my secrets but she did swear him to secrecy. He has not outed me as of yet but he is lording it over me. I told him to go ahead and tell people since no one will believe a big mouth like him anyways. He has also jokingly implied blackmail. I have spoken to a supervisor with out naming names. I cannot move to a different part of the call center since all company reps must sit together. If I have the person fired for harrassment then I will be outed. I do not care if it comes out at work but if it gets into my personal life, then I'm screwed. I am looking for a position on a different shift. I am also looking for a new job elsewhere.

I wish I could cry. But the tears just will not come.

Jessica Marie