Why have just one? .....Oops.IMO the best definition of alcoholism is the inability to have just one drink.
Lack of control. Went to the bar for two drinks and leave smashed.
That doesn't mean you're an alchy.
Classic hallmarks of addiction include: impaired control over substances/behavior, preoccupation with substance/behavior, continued use despite consequences, and denial
That doesn't mean you're an alchy.