i am sorry to hear after a long fruitful relationship you are both no longer satisfied or fulfilling each other. It happens and hopefully you aren't blaming each other. It may be time for both of you to just move on your separate ways. That's what can happen when neither party can change for the other. Should you either really have to? Good luck to you both in finding happiness fulfillment and contentment. Of course you both could always go the therapy route.