Most marriages have a division of labor. For example, in our marriage I deal with vomiting children and he deals with all dead things (mice, squirrels, rabbit parts left by the cat and the sad demise of pets). This is just us. To divide every single task 50-50 is silly when you consider that there are individual talents and strengths. My dh travels a lot so he takes care of any travel plans. However, if you are fed up with a particular task I think it is perfectly fair to say so and swap. As in, "Honey, I am tired of being the social planner and so you need to take that one over and plan an outing every week (or whatever) and I will take one of your tasks."
I think you are getting into dangerous territory when you start talking about wanting your spouse/partner to want something that you want them to want.