I notice that when im in a group of people?

Don't worry hun , there is no need to feel ugly , people always single out anyone who stands out in anyway , even if its a good thing. Also ( just assuming your in middle or highschool) kids will pick on ANYONE they can which makes you feel singled out even if your not the only one , maybe your friends are more conforming and you have a stronger personality. Standing out can only make you a better more beautiful person inside and out. Have confidence in yourself for who you are without worrying about people that will hurt you .