Need to have a supportive first mate.
My father had the same problem, he finally stopped struggling to have her share his hobby, and gave up on his dream, when all there was left, was to put up the sail and go.
He never sailed the Formosa
41, and gave it practically away for 20,000$ just so my mother would not have to hear anymore about his boat. The boat was in amazing condition. Unfortunately i have never forgiven him, he should never have given up his dream. And he should have never given up on my mother, i think she may have come around.
As a Wife, try to make sailing a romantic experience for you two. Get in touch and talk about sentimental things, women like that! Before you know it your wife will be begging you to take her sailing!! And will want to forget about the Honey Please do List, cause she is having too much fun!!