If there is one thing we learn here, it is that everyone is different.
I don't see any reason why that couldn't be true for this subject as well.
I believe I am someone who was never addicted to nicotine in the first place.
I smked on average about 5 cigarettes per day for 27 years, and never felt a physical craving for a cigarette...
And this was true no matter how long I went without one.
But I had VERY strong psychological cravings.
I could go all day without even thinking about a cigarette until I saw someone having one.
That usually triggered me to want one, and once I wanted one I pretty much had to have one no matter what.