My husband and I are both (er... were both) smokers, with my habit being 2-3 (closer to 3) packs a day, and his 1-2 (closer to 1). When we started this together, we both thought that I would be the one that kept reaching for the analogs because my habit (addiction) was significantly worse than his, and he had quit once before (and started back up when he got with me, the human chimney).
I'm heading into Day 5 with no analogs, and he's still smoking 2-4 cigarettes a day, turning that premise right on its ear.
My attitude is that if we make this a test of willpower, we may as well flip a coin as to whether he will succeed or not because then it becomes pressure, failure... all things we don't want him to have surrounding this. Two weeks ago, he smoked 20-40 cigarettes a day. This week, he's at 2-4. That is total success over 16 cigarettes per day, or 112 a week, or 448 of those stinky buggers a month. That's a success no matter which way you cut it.
He, too, is struggling with that sense of frustration, and I'll tell you what I told him: If you can't do it all the way right now, you still did it most of the way and at some point, when you're ready, it'll happen. But don't focus on what you didn't accomplish - look at how much you cut down, add that up, and pat yourself on the back. That was an awesome first step, and the next one will come when you're ready.