text: Let me just tell you that 16 year old girls are a pain in the butt to ANYONE that is close to them......I wouldn't worry about it...Just  don't make a big deal out of it and keep inviting her to do stuff...If she is still difficult then talk to her about it and say....You know I try to be a good brother but you are a pain in the *&^...  Just be honest with her....16 year old girls think they know everything but they know very little about real life....