I'm an alcoholic (see that Anyone else... quit drinking thread). I haven't had a drink in years.
Alcohol is a problem when it affects your life. There are college students that can have 5 drinks in a night, and then get up in the morning and do their exams without an issue. Is that a lot of booze? Yes, but if it doesn't affect their life in a negative way then it isn't necessarily a problem is it?
Lucky8, if it affects your life negatively, makes you feel bad, regretful, etc. then I'm not saying you're an alcoholic, I'm saying it may be time to quit. Frequency isn't an issue, one does not have to drink daily to allow it to negatively affect their life (which is why so many alcoholics refuse help).
Anyways, good luck to you

If there was a particular food that made you sick, would you stop it? Booze is no different. It's okay to say no if it upsets you.
And yes, medically, it is considered binge drinking. However, alcohol is also relative to bodyweight and we don't know the ratio of OP's drinks. They usually have more booze than the standard. For all you know, it could have been 3 "drinks" or 9 "drinks", nobody knows. At home, probably more than less.