I have a friend (who was a teacher of mine in grad school) who has been taking advantage of me in terms of hiding or justifying her addiction.
This forum is great for learning certain practical ways of handling all of the manipulations and excuses.
Detachment and boundaries are going into effect as soon as she gets back into town. I don't think it's going to be pretty. I actually started saying NO during the past few months, and her anger and rage escalated. The times I said NO to her pleadings/demands were simply because of my work; one instance was just my saying no thanks.
I have been enabling her for years, and I should have known better. Once I set the boundaries--for myself--is the proverbial S going to hit the fan? I want to be prepared if that is going to happen.