David, I know exactly what you mean. My suggestion is just plain ole honesty. Think about this for a second. What are the challenges and differences that are negatively affecting your relationship? Go to a coffee shop or somewhere else and think about it. What's the major differences between your relationship now and in the past when you two were happily loving one another? Think about everything, get all of your ducks in a row and present your findings to her in a very pleasant, friendly and compassionate manner.
Be honest and share your heart with her and I believe you will receive the breakthrough you seek...Freedom.
Good luck.
