Nothing Is Ever Good Enough!

I have been with this man since 2003,I was 20 years old when we meet he was 23 things were great for the most part until I moved in with him we started to fight and he drinks bad so it always made fights worse.Then things got better after he moved to a new job and a new apartment which I am still living in now,so we got married in 2009 and are still together now in 2012 he had stopped drinking for about 3 years and things were so good between us now after that long he has started drinking bad again and he started a fight with me about saying he was done with me the night before the fight was halloween and we took our 9 year old son trick or treating and we all had a blast even him so I started crying wondering what happened to make him say this like it was day and night how he was acting.So I had looked in the trash can to see how many beers he had and it was a bag full of the big tall beers I have nothing against beer I just don't drink it cause it makes me sick,but he don't know when to stop and it makes him say the most hurtful things to me telling me he hates me wishes I would die and a lot more bad words he calls me....He says the beer don't make him do that but when he goes a day without it we don't fight not once does anyone else out there go through this and do you have any advice for me?