I know how frustrating addiction can be then add the outside influences it becomes a war of sorts………..you against her addiction and all her soldiers.
Is this friend aware that your wife has a drinking issue?
Many years ago I was influenced by a neighbor with her sad sob stories of her husband being abusive and controlling. Not allowing her a car and trying to keep her hostage in the house all day while he was is at work. I felt sorry for her and I believed her stories. She would often ask for a ride to the grocery store where she was buying milk, bread and a bottle of Whiskey – I had no idea that while I sat in the car and she went inside the store that she was buying booze, never even crossed my mind. Yet her husband blamed me for allowing his wife access to booze.