As an alcoholic from an alcoholic background with two alcoholic parents, three active alcoholic brothers, two alcoholic grandparents, and four alcoholic nieces....
you can't do anything to make her see the light. An alcoholic has to come to conclusions themself. Telling her she is an alcoholic won't help much. She has to see the woman in the mirror.
Your big question is do you want to be a codie in this relationship?