Probably because I joined it. 
This may be a serious problem (depending on your view of serious - after all it's not life threatening) but it does have an amusing side.
I have had the problem for many years, but can still joke about it. Sex is good, but the lack of it has never affected our relationship, just gave us time to read more books.
GN does give a platform for members to discuss problems like this as we are anonymous, I have never discussed this with anyone else, perhaps if I had, I would have found the solution years ago.
Even when this thread has broken down into smut, it has still been respectful.