Heh heh!
I guess I'm suggesting to make a game out of it -- be light and flirty about it -- I don't mean it as a new "rule" in the relationship because that won't go over well at all. But be careful to take away something that is fun or important for him. I know that my husband's bike racing obsession was annoying at the beginning, but once he became depressed, I would have given anything to see something bring him joy. Now I'm glad when he rides or races because I know it's making him happy, and that to me is the most important thing.