Hi GC,
Welcome to SR! You will find a lot of people here who understand what you are going through, so we hope you will stick around and continue to post.
So sorry for such a crappy situation you're dealing with right now; I think what everyone's already posted hits the nail on the head--sounds like an alcoholic, and as alcoholics will do, he's put his love affair with the bottle above any love affair with you. And that's the sad, sh*tty fact about things.
The alcoholic in my life is my sister, and I have lived through countless days / nights of hellish circumstances due to her drinking. It was only when I accepted that I neither could control / cure her, nor did I have to put up with it, that I started living a more peaceful life for myself.
It may not seem like it now, but you are fortunate that you found this out about him before getting married...could have been much worse.
I know it's difficult...it will take time. Take care of yourself and know that everyone is here for you!
Welcome!
p.s. red hair? I'm a "ginger", too!