Re: when your friend is doing something wrong.
baynishan and yanzala .... multinicks? LOL
Tell her like this:
Find something that she disagrees with ... then give an example to her ...
"If I have a friend he/she does this really bad thing, but I can't tell him/her out of fear that the advice will backfire and he/she will stop being my friend ... what should I do?"
Ask her the very same question you have asked us and she herself will tell you the answer ...