Life with an alcoholic

The Complete and Total Loser got a text from a friend and ex-coworker two months ago. He'd been kicked out of the house he shared with his girlfriend, had lost his job the previous month, had little money and no place to stay. Could he stay with the Loser?
The Loser said yes. 
The friend is an alcoholic but one of those who'd say he isn't because it's "only beer" and only at night. But it's half a case of beer a day and the friend mentioned that it was an issue with his girlfriend. Also, the friend had gotten a DUI six years ago. It's helpful to look objectively at things that have

happened to you because of your alcohol or drug use and then make the diagnosis. The Loser is surprised that his friend, who is very bright, hasn't done this. 
The friend also smokes at least one pack of cigarettes a day. 
He stays up well into the morning, drinking and smoking and going online, sleeps until at least one in the afternoon, wakes to drink only coffee with cream and sugar until dinner, which he makes himself with lots of butter, meat and pasta only. He never eats vegetables or fruit. That is his only meal of the day—he gets most of his calories from the beer, each can of which has about 150 calories. He bathes surprisingly infrequently and skips days brushing his teeth. Despite this, he seems clean. (The Loser reeks and feels disgusting if he misses one of his two daily showers and the grease on his bald scalp thickens and shines.)
*Update* The friend moved back with his girlfriend in August and all is well with them, so far.