but a brother and a friend is different.
if a brother has a badinfluence, then number 1, doesnt affect your name as being a bummy girl.
number 2. you psychologically say, what my brother does is not for me, you love him just because hes family, and you dont have to hang around him all the time.
but a friend is someone you hang around, someone you choose, so if their like that then that means you chose them, you appreciate such people. and because you enjoy your friends company, youll hang around her, and without meaning to or wanting, shell rub off on you.
chazal say “harchek meeshachen ra” for a reason.
and just btw, a good thing that came out of this story, i became way frummer, because i see her mistakes! hindsight is 20/20. i see it from outside ppoint of view and i dont want to fall into her trap!