Good comment about the diabetes. My husband has type II diabetes and occasionally gets that fruity smell. But he is not an alcoholic. In fact he hardly drinks at all - maybe a glass of wine at a family party. But, yes, the husband of the questioner should be checked for diabetes.
Please get diabetes checked.....my grandfather went into a coma and we always smelt this fruit sweet smell all the time....the Dr said his sugar was too high and he went into a coma...and I (think) he said the alcohol maybe had something.g to do with the sweet smell...sorry got it all mixed up just get his sugar checked......
I had a friend who was an alcoholic. At first I did not know of her addiction. She had the loveliest sweet smell that was personal and had nothing to do with perfume. I guess the smell was related to her alcoholism. I'm sorry your husband doesn't smell better. Maybe it has to do with the kind of alcohol they drink.