Hi Heather!(BTW beautiful name!I like it)
They treat dogs like they treat humans. "I'm so wonderful and cooperative and loving, let me bake you a cake!" then when drunk, or when access to alcohol is not granted, or when you don't shut up and let them spew their insults/yelling to you, HELL it is. Its Jekyll and Mr Hyde.
There is much info and support in this site.
Welcome, sadly we all here get what you mean. Gladly many of us feel much better and see the light at the end of the tunnel....