how is that stupid? She wanted to have sex. She wanted to try roofies. She liked the guy. So let him Roofie her. Everyone wins!
You're just not thinking outside the box. She knew what she was doing. Just becsaue you think experimenting with drugs, and sex are moral failures doesn't mean the rest of humanity thinks that way. You watch too much TV. News flash, ma'am, Humans are animals.