Thanks to all for the good discussion, here's the update. While making the beds after Smoky used the dryer last, I found that my husband DIDN'T THOROUGHLY DRY the bedclothes...and it was bedtime. In his rush to free up the dryer for Smoky, apparently he didn't notice anything being damp except for one sweatshirt that he hung up to dry in our spidery basement. I was livid, at my husband, not Smoky. Just sharing as it was completely infuriating.
After that settled down, I brought up the Smoky issue and reiterated that I personally would not be supporting any future favors. My Hubs said he already laid out with Smoky how bad coughing up half his lung was and that there would be no more cigs. He also said something about me being mad that he even asked. So, now Smoky is giving me the silent treatment, but continuing to text my husband to hang out. This works out fine for me, because someone who isn't talking to you can't ask for anything.