Welcome Kvp!
Lots of great people here!
I had a sister like that, and I often sent money, as I was the only in the family who never said no.....took me a long while to do what got2loveme said, and rightfully so, I did that the last time with my sister and she hung up on me. After calling collect many times that day.
She hasn't asked me for money since that time. Although on the rare occassion I go to see her, which is usually in the midst of a crisis, I do leave money because I can't bare to see her live like she is...and I know, probably not a dime made to pay for anything wise, but guess it eases my conscience.
Everyone above is right, she has to want to quit for herself, hopefully her family will intervene and take her daughter if need be. That's what we did with my sister, until the boys grew up and went to live on their own.
I'll pray for your friend.