I can only imagine how hard this must be... I know I personally couldn't stand such a situation right now. I am well aware of my drinking problem, but seeing others enjoying "the stuff" still makes me sad deep inside as I know I can't have that kind of fun anymore.
On the other hand, realistically speaking... I would not have the fun they have even if I was drinking. I'd just be obsessed with making sure there is steady supply of new drinks.
Hope you'll have a good and sober Saturday night and a better day tomorrow!