help
i dont know what to do....one of my best friends started dating this guy and he got her into coke and who knows what other kinds of drugs. She has lost lots of weight...like 35 pounds in a month because she has stopped eating. The other day she was passing out in the van when were driving, she keeps disapearing and no one ever knows where she is, she gave a bunch of her clothes away to all her friends and is ditching everyone or leaving early to go hang out with her bf all the time. We told her she should stop but she says she is fine and that she wont get addicted she just needs to lose weight (which she doesnt cause she is skinny) but we are pretty sure she is already addicted and she doesnt even know it. We don't know what to do