If they are acting that way then are not your true friends. A friend is someone who you can tell everything with no matter what that may be. I find that true friends are very rare. I myself have two friends. My one friend I met when I was still in school. Shes going in Senior year next year. I still keep in touch by phone with her, were pretty good friends.
My other friend graduated the same year I did but is 2 years older then me. She an ok friend but sometimes she acts to much like she knows everything.-.-; We get along better then we did in school though.