I'm happy you took the time to reason things out properly Kate because that's very important!
Our minds play tricks on us when there's an addiction involved. Our mind suggests relief from our struggle will be the reward if we give in and light up but that is just a lie.
The truth is, we will be back in chains again, a slave to this addiction that brings nothing but misery and even death. Many have come to this realization too late - AFTER they went and bough that pack and lit one up! Stay strong because you are really doing a great job and this post proves you know how to rationalize the pros and cons of smoking. That's a very useful tool to have at your disposal going forward!