Hello Free,
Good for you that you didn't take that drink, being so close to it.
Sometimes there are "good" reasons for taking a drink, that was what I used to think. But no reason is good enough, or there are at least a million contra reasons.
Cravings occur, without knowing why. That is the disease. Recovery, I think, is not giving in, but at moments like this, reaching out, go to a meeting, call your sponsor, or do whatever it takes to stop you from taking that first drink. Actually, that's all you have to do: not taking the first drink.
Best wishes!