@lollypop35,
Mixing with the popular girls I assume has giving you some popularity but really has it?
I mean, it just means you don't get picked on but on the down side, you are mixing with people that thrive on spilling the beans, getting a laugh and hurting someone.
Your original friends aren't like that, when they say they are your friend, they mean it, meant it and wouldn't hurt you deliberately.
You've choosen to go with the crowd instead, do not tell them your secrets it will get out.