You are a Bully
If you are in high school and You are the only one left who is not fit for any group and people around you always insults you , bully you. That thing happened and you realize what is wrong with you and Why are you like that and why they behave with you like that.
Then you get in college and their become famous and then you become happy because every one start loving you. In every class their is two or three students that no one want to be friend of. When you are the one in those two or three friend you realize but when you become famous, Its naturally thing that you think yourself a cool one and You also do same stuff as happened to you
So the thing is that you have to be nice. I know if no one talking to you how it feels. But remain that thing in your mind and stay connected with everyone. I saw many guys Who went low to high means, First they were the topic and now they are making other. As people get closer to each other, you feel something high like you are a superstar. Don't forget that you are a human from inside.