Should I say anything? Should I just accept that he drinks and leave him alone?

I got married in October of last year. I love my husband. He is my best friend and my rock. 90% of the time we get along great. The problem comes down to one thing. I do not drink. I was baptized in November and I made the choice not to drink.
My husband drinks everyday somedays more than others. When he drinks more than a few he changes. He is not the same person. We fight more and it is always the same things. He says its not a big deal. Its just beer.