I know. Both the lyrics and video are sad. She is using and abusing drugs to forget about the person she loves. The drugs cause her to be reckless and she does what she does not want to do (what she should not do) and she wanders helplessly and party with random people and kiss strangers because she is confused. The drugs really don't help her think straight and that is why she should not use these substances...especially is she just wants to forget because they have more psychological and physiological side effects.