welcome ashnicole-
i totally relate, as the same thing happened to me. relationship was fine until i moved in. then he couldn't hide his drinking anymore. i really had no idea how extreme it was.
from what you've said, the good news is you didn't marry him yet!
read around here. you will learn a lot. i needed to educate myself first about alcoholism before i saw the patterns clearly.
you say he is violent. care to expand on that? are you in danger?
navie