My fiance is a non-smoker, but her father smokes pipes and cigars, so she is used to it. Whenever I light up she'll say something like, "Are you smoking that Peter Stokkebye English Luxury again?" I just smile and say, "Yes dear, how ever did you know?" To which she will respond, "I just know."
And she DOES. Sometimes better than I do.
She never tells me that my pipes smell bad, but if it is not her fancy she does say, "That one smells a bit strong, dear."
I knew I was going to marry her when I was sitting on the back porch watching the rain, and she brings me a properly loaded pipe and a hot cup of coffee. What a gal!