TWO-FACED friend that makes me look bad??help?

well i don't know how old she is.. .nor do i know how old you are.. and maybe she doesn't realize what she is doing. i don't know. If i were you i would just tell her exactly how you feel and what you don't like.. i'd just bring her to a room and tell her all the things she has done that has made you mad. I mean as far as the chatting to the adults and stuff.. i mean you can't really hate on that.. from what you are saying she seems to be very outgoing. And i don't know you... but maybe you should be the same outgoing person. I wouldn't be rude or anything.. just engage in other peoples conversation if you are invited to. If you don't want to then don't.. and let her do her thing and you do yours. BUT i would say if she is your friend talk to her.. i understand venting and getting the frustration out.. but if this is serious you should talk and be the better friend.. and not hate on her behind her back. You may find out she is not worth you being her friend..