Too the OP, very eerily similar story to my wife and mines relationship! Including the divore, moving that ended due to car wreck, and remarriage! She's not quite asexual but has a significantly different drive than I myself do. Poly wasn't our answer to the difference, we started swinging and once we discovered poly it was a much better fit! Though it does have its ups and downs! Feel free to pm me if you'd like to chat with someone who has experience in such a situation. Both of us here know how frustrating the situation can be at times!