You must accept the fact that a relationship is changing, which does not necessarily mean changing for the worse. Actually, you get considerable influence over what form and direction the change takes, though you’re also being confronted by essential elements that are out of your control. Borrowing from the serenity prayer, you have to sort out the difference. Meanwhile, I suggest you review the history of the relationship. There was a turning point between 2008 and 2009. If the relationship in question dates prior to that era, study the developments at that time; otherwise, consider this date range as a turning point in your relationship history, in total. The changes that are upon you involve both the form of your relationships, and their content. In short, the old forms can no longer hold what you want to express, what you feel, or what you need. They are simply not flexible enough. Yet you may not be aware of what new structure to use. I suggest you allow form to follow function. In other words, what is the purpose and the content of the relationship? Then based on that, how to have the relationship will be more obvious. Yet this is a bigger change than most people think. We tend to put the form of the relationship over the content or purpose. We try to fit people (including ourselves) into preconceived ideas about relationships and this is precisely what is changing.