no your not addicted,
I'm not going to tell you about "what and how"
but its a disgusting habit you have, I'm sorry to tell you how it is...
but it is one thing you should stay away from, i don't really see any harm, personally, in you liking the smell of the gas from a lighter, i suppose its just like when anyone has a marker pen, its always one of those "smells" as to say.
but please please please don't turn it into a habit, I'm pretty sure your much better than that
x