I'm not going to accuse her of being an alcoholic because I enjoy a drink too but to me it ALWAYS seems she's drinking/ drank too much/ drunk. Surprising for someone with such bad emetophobia
There's a line before alcoholism and recognising one is drinking too much/might have a problem/needs to be careful. I'm certainly someone who does overdo it every now and then, so I take breaks (Dry January etc) and also, should I notice that I reach for it a bit too much, I cut down and only drink on Fridays and Saturdays, as it does effect how I sleep and feel at work when I've been indulging a bit much.
I don't think she's an alcoholic but definitely someone who should be a bit more mindful of her drinking.
Lastly, I have become much more of a lightweight when it comes to drinking in my 30s and sometimes when I get too tipsy too quickly when I am out with others, I feel terribly embarrassed and uncomfortable.