Usually someone's over the top reaction says more about them than it does about you. To be honest, I haven't told that many people but the ones I have have been more concerned about what my alcoholism says about them. I think most people think that if you have to give up drinking then they might have to too. Quite frankly it scares the s**t out of them!
Stand your ground and eventually they'll accept it. I kind of think that it must be hard for our drinking buddies too when we get sober. Not only does it hold a mirror up to their own habits but they may feel like they're losing a friend themselves. People don't like change. But they'll just have to get used to it
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