Loving a drug addict isn't bitter sweet.They'd destroy you worse then the drugs are destroying them. You'd try to save them,but as you're saving them they're beating you down,stepping on you causing your lungs to collapse as you scream...The drugs made them a different person,it stole their talent and gave them split personalities. Loving a drug addict feels like you're on drugs yourself,you might as well just get a needle and dope yourself up with them because it would hurt less then loving them and them destroying you.