Welcome and congratulations on recognizing that providing her with alcohol is enabling, that is powerful insight that some do not have.
As for your friend, I would avoid debating or even bringing it up. Until she is ready to quit, there is not much you can do to convince her otherwise. If you are looking for help for yourself in dealing with this situation, Al Anon is a great resource along with this web site.
I wish you the best, take care of yourself and hopefully your friend will come around at some point.
