Oh, the old, "I don't know why you're mad"! It really gets us codies, because we see it as our cue to make them "understand"... when in fact, it is their goal NOT to! They are in deep, deep denial. They don't want to see the pain they're causing. So when we try to explain, um, hello! Look what you're doing here! We're really just talking to a blank wall, or whatever the expression is.
You will let go of a lot of the frustration you're feeling when you begin to understand and, thus, break free of the game.
No matter how many reasons there may be for him to quit, when that devil on his shoulder starts to whispering, they won't matter... until (and IF) he's learned to.
Addiction makes no sense.
Protect yourself and your children. Protect your MIND. Because living with an addict can absolutely drive you insane.