I was bullied by a group of girls in 6th grade. They did the typically "mean girl' stuff and succeeded in making my life miserable. For an entire year, I was ridiculed and picked on, and I never knew what I did to get on their bad side. I continued to go to school with those same girls throughout junior high and high school.
I was suddenly and mysteriously brought back into their fold when we started high-school. I never knew why they changed their minds, but I was happy to have friends again.
A new girl transferred into the school, and the same girls where were mean to me for no reason picked on the other girl. I had to admit that she was a little homely, and what not, but she really was a sweet girl. Unfortunately, I was all to familiar with what it felt like to be without friends. I didn't want to risk being alone again, so I joined forces with those girls and did to her what they had done to me.
To this day, I wish I could find that girl and apologize for terrorizing her.