It is NEVER You! From someone who has experienced a lot of bullying in my life, I have a full understanding that it was NEVER me. When people judge others, it's because there is something about themselves that they don't like or a situation that is bothering them. They are in pain and feel the only way to express that frustration is to put it on others.
Click here for more: https://www.youtube.com/watch?v=yeI3P1PM5G0
When in the midst of bullying, it takes a lot of work to stay strong and fall into the belief that what the other person is saying about you (which is negative) is true. It is never true! Everyone is a unique individual and why listen to anything less?