I don't buy into the whole me vs. drugs thing.
We codependents have this way of making someone else's problems all about us. The BF's addiction is not personal. It just feels that way, right now.
This relationship is not an accident Two broken people chose each other because codependency and addiction/alcoholism go hand in hand.
I mean, what's the use of being a codependent unless we are tangled up with someone with serious problems that we can't fix.