Hi kurapika
You are most definitely not being selfish! Don't doubt yourself!
I've been there, and its really difficult to not want to give in. It took me a looong time to learn to stand my ground when it came to that.
Can you go somewhere else when he starts getting angry?
If he wants booze bad enough, he will find a way to get it on his own. My AH always did... Even when he had a broken foot.
Others who are more wise and eloquent will be along later I'm sure, but just wanted to say that.
Take care of you!!!!