From the grown-ups over the years...

People who tease you are just immature. Do not take any notice, ignore them, then they will get bored (^_^)
If they pay more important to your looks, money and style rather than your personality, they are not worth to be friends with. They talk about you, but they have no gut to confront with you face to face. Absolutely, they are coward. Without money and gut, they just nothing. They only have "big mouth" in life to carry on. Only a loser has this kind of attitude. So, let them be. Pity them.
Hehe.