Telling yourself there is no light switch in you, that you are stronger or better equipped than others, is a dangerous way to eventual relapse. Though for your own sake I really hope I am wrong.
Sir, I further regret to inform you that I've accidentally inhaled tobacco in recent years when being passed a (REDACTED BASED ON FEDERAL CANNABIS LAWS) that, unknown to me, had tobacco mixed in. I coughed, was disgusted, and had zero cravings for tobacco thereafter.
As such, there is no risk of relapse.
I do believe that my short stint consuming Chantix may have permanently rewired my brain's reaction to cigarettes.