Some people can never shake it no matter what (my mother); others, like you (and my older brother) might be more correctly categorized as habitual drinkers, as they keep it at home and manage to avoid a lot of alcohol-related issues (like not being able to hold a job, losing one's family, DUIs etc). My other brother falls in the middle because he had the same job for over 25 years, has a successful marriage, etc, but when he's out with others he will invariably be the most drunk person there and has had multiple DUIs. I wish he'd quit alcohol but have little hope that he will.
You have a loving family and I am so happy for you that you have chosen sobriety and been clean all this time. I know it is not easy, but what I gleaned from your post is not so much that you were aching for a drink at the party, but that you have moved on from drinking and now find it unpleasant to be around drunk people. Right or wrong that's my take. 
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