Did I say that?
She witnessed crimes and didn't say anything. She kept going back and didn't stop anything going on at these parties, she witnessed boys spiking drinks but let girls continue to drink them. She was older than most if not all of these kids at the party and never spoke up or stopped going. What she did was wrong as well, anybody who witnessed this stuff happening and said nothing was wrong.
But that does not mean I think it was her fault it happened to her, it should never happen to anyone and it is never the victims fault no matter how much trouble they put themselves in.