I'm gunna have to agree with you on this one. How long did they hang out exactly?? I've never known!Her hair was bleached. Obviously there were times that she had silver hair, but for the most part it was blonde, so all I'm saying is that it doesn't seem too likely that all she could "find was silver spray instead of the blonde" otherwise she probably would've never had blonde hair.
Andy told everyone to just be themselves, not specifically Edie. Considering they only paled around together for about a year -if even that long - and the fact that she wasn't even really famous (maybe in New York City she was semi-famous) I hardly think she affected him that much. Andy Warhol was famous in his own right, his art was talked about all over, he was extremely successful, had great connections; this all before he ever even met her. He would've gotten to where he was had he met Edie or not.