Yes. My wife (with 7-8 years into MCI diagnosis) was a nightly wine drinker for years, but it has increased as her disease progresses. Her poor short term memory worsens with the first drink. She has stated she has not desire to stop drinking (I stopped 5 years ago) because it's her only pleasure and her prognosis is so bad. There is no reaoning with her. Once or twice a week she goes into a blackout and turns into a very confrontational person and threatens to divorce me or to move into the guest bedroom. An hour later she may be loving and has not memory of the other personality. It's hard to listen to, but it's worse if I engage her. I could try to take her wine away, but she would get it on her own and she becomes belligerent if I mention her drinking. You have my sympathy and empathy.