I had to turn into a nagging bitch too-- just to get him to do some basic tasks. Of all things, the thing we fought about the most was the dance lessons! He never wanted to practice and blamed me for it. Which spiraled into an argument over how I am responsible for everything in this wedding, and that I shouldn't have to beg him to do every little thing. He is being helpful again and we haven't fought since. I think you just need to get it out there and let him know that BOTH of you are getting married, so BOTH of you need to contribute to the planning.