I had a friend (ironically the one who introduced me to to social media). Keep in mind we are over 50 and have had a somewhat tumultuous relationship all our lives. I stopped speaking to her and unfriended her when she did something extremely rude. This was a pattern. That time she did eventually apologize and we became friends again. She sent me a friend request on Facebook. I told her I want to not refriend her on there for now and give our real life friendship some time to see if we can get along, avoiding another unfriending drama on Facebook. Plus on Facebook she tended to make obnoxious comments on my wall to my friends and got angry when I deleted her rude comments! This didn’t go over well with her. She was furious to respect that I needed a boundary and she continued to harass me about the stupid Facebook friending. I held my ground. Shortly thereafter she was extremely rude to me again and we haven’t spoken for a year now.