My gf says I drink too much. When I asked her how much she thinks I drink, she said I have a drink or two maybe 3-4 times/week. That's true but I don't think that's a lot. Is it?
It doesn't sound like your drinking is out of control. However, I'm always much more concerned about behaviors associated with drinking rather than just a quantity. There may be an alcoholic in her background, which would explain a lot of her concern. The two of you need to explore her alarm. She may have something or not. Only information will tell.