She Called Me Her 'Best Friend'

We were friends for a long time. She called me 'her best friend'. I did nothing to her ... I mean I have never wronged her ... Believe me when I tell you that I did absolutely nothing to her. One day at home, my daughter and I were in the living room. My daughter was watching CBeebies while I was on the computer doing something. Then I felt like eating blueberry muffins, so I decided to go and bake some in the kitchen. As soon as I stepped into the kitchen my mobile phone started ringing. I had left it in the living room, so I went back to collect it and then returned to the kitchen ... Then somebody was banging on the door. I wondered why the person had not thought to ring the doorbell. The person banged and banged so hard. This was very unusual. It was her: "Open the fucking door before I lose it! Damn it!" I did not open the door. I rushed to the living room to get my daughter. I was scared and did not know what she was up to. But she did go through the backyard ... What had I ever done to her that would make her hurt me that badly? What could make somebody want to harm another person for no reason at all? Your comments about this book are welcomed on the book's Facebook page: She called me her best friend or by e-mail to landyvic@hotmail.com