So here is the scene:
My manager got hired in my company 2 months ago (full time). Before that he came here as a consultant. The company he came from, I used to work over there until I got laid off. The CEO of that company told my manager something negative about me. I know this for sure.
Now, when he was a consultant everything was good. He used to make jokes about me and I didn't like it. So I kind of reverted it back to him whenever he tried. But NOW he became my manager and there is a tension between both of us. I am afraid to ask any questions to him because the tone he uses is harsh and I feel offended. Plus he belittles me in front of his desk, where everyone can listen.
My question is: How should I approach this issue? I don't want to drag this tension for a period of time.