Social Media

I just received an angry note from someone whom I had unfriended on Facebook.  The reason that I unfriended him is that I was annoyed by some of the comments and announcements he was posting.  I didn't make an issue of it.  I didn't even tell him that I had removed his name.  That was a couple weeks ago.  Yesterday, a reporter, whom I do not know, confronted him in a public venue, and loudly asked why I had unfriended him.  I wonder how that reporter even knows my name and how he could know that I had unfriended the other man.