<human>: As a freshman in college I had a job with co-workers who I will be with until graduation and became very close with another student in my workplace towards the end of first semester. It is looked down upon to date other people in in my workplace because it tends to cause a lack of professionalism. Roger and I thought we would be okay to date because we both had good reputations and respect at work. Nevertheless we keep our relationship extremely secret to the point where I did not tell any of even my closest friends. 

As we began this secret dating endeavor I began to realize that Roger was extremely insecure about everything and anything. He was also very jealous and had to tendency to be manipulating. We always hung out, I lost some very good friends because of his and my relationship. Over the summer we broke up and I believed him to be an adult enough to keep things professional when we got back to school. It was a clean break-up and he even sent me a few "how you doing" texts over the summer. 

When we got back to school he was put in a place of minor authority and began to verbally attack some of my close friends at work, but still never approached me. He started to tell people we dated, in a way where he proclaimed our relationship his mistake and painted me a whore. I have been ignoring him because I did not want to give him any reaction, but I believe it has gone to far. 

He continues to ruin my reputation at work, and is not letting the situation drop. I think it is time for me to confront him about it. I have intentionally been avoiding him all year because of how rude he was to my friends at the beginning of the school year after our break up. 

I do not know how to approach the situation effectively with out making it worse, nor do I want to back myself in a corner where he can continue to manipulate me.

Give me a shortened version of the text
<bot>: Manipulating Co-worker who I used to date is ruining my reputation in my workplace and I need to confront him about it, but do not know how.