My sister is so fake?

[Jonathan]

I believe she is trying to figure out who she is and will try on a bunch of masks before she decides the one that is for her. That doesnt neccessarily mean she is fake she is just in a transition period of her life. Im no expert but thats what it sounds like. Now if she is fake and she is super mean call her out on it dont be mean but let her know that you know she is being ridiculous and she isnt fooling anyone. It may be hard people may hate you for it but it is still the right thing to do to not let her believe her own lies. Truth is always better than lies even if it hurts the people you care about.