OH my I am so sorry. I got teary eyed thinking of that newborn baby without anyone to hold and love him.
Do you think she is also doing drugs? do you want to take the baby in? I would call the social worker again and just see where they are at with it all. It would be so sad if the baby went home with her and got some kind of infection
Maybe giver her some information about Al-anon. Also, Social workers have a lot of resources and knowledge. Maybe you could ask the social worker to talk to her (about co-dependency, crack addicted BF, etc) She may be able to point her to some resources (counceling, etc). And that way it isn't coming from you. She may be more likely to hear it from someone else.
(((((hugs))))