Hi, as a personal experience of being for 6 years the girlfriend of a non-active addict, I can tell you this: once an addict always an addict, it is harder to leave down the line, and there is nothing you can do to help him change, he has to change all on his own and for nobody’s sake but his. Leaving or standing by him, either way I suggest you get yourself to the closest al-anon chapter, they will help you deal with both being the daughter of an alcoholic and loving one. Best of luck to you, I know it is not an easy decicion, but being his punching bag (phisical or emotional) helps neither of you.