Sounds like a very rude reaction to me. Personally, I generally don't get into conversations about drinking or not drinking. I've been sober for years now and have only told maybe three people the real skinny on why I stopped drinking. The rest don't need to know. Why give people you haven't even seen for years the power to judge your life?
And if someone ever told me that one day I would start drinking again, I would walk away from them and never come back.
Just some food for thought,