why people making fun from acne?

People with clear skin really bug me sometimes, they act like they are so much better looking than people with acne, and they are always the most popular people, and always have girlfriends!

Ive been teased in the past by guys with really clear skin. They never even had a single acne pimple! They always thought they were better than me, and always teased me. But when I finished my course of Accutane and my skin totally cleared up, I had the clearest skin in the entire school, it was as clear as the guys who onced teased me, and when I had the clear skin, they never dared to even say anything to me, because they knew that I was quite good looking and I gave them a run for their money. But as the months went by, my acne returned, and they started to insult me more than ever, which was so annoying because I looked really bad once my acne returned, and I was no where near as good looking as them anymore. Once they even got a sharp ruler, and rubbed it across my face, causing heaps of my pimples to pop, and left major scars! Even my brother (who is around my age and has very clear skin, unlike me) teases me occasionly and makes fun and says that he is much better looking than me. Anyone been in a simalar situation?