It's not giving up. It's defining your own personal standards on how the men in your life will treat you. How you want your life to look. Obviously this is a problem for you or you wouldn't be posting about it here.
A great book to read is Under the Influence. You can find it on Amazon.com. Best to know what you are facing now, because it rarely gets better. And if things do change - i.e. he gets sober - one never knows if that change will be for the better or worse. Or as some here find out, the only thing that changes is he's no longer an angry drunk. Now he's an angry sober man.
There are no guarantees in life. And none of us has a crystal ball to predict the future, but past behavior is the best predictor of future behavior, and this guy isn't close to being done drinking.