How can someone have a addiction if they're married?

That's the most easiest question I have seen so far! It is in our human nature to be attracted to the oppisite . I know I am also having a lot of difficulty with this. What you have is indeed very common. It just means that either you are not truly in "love" with your wife or she needs to start practicing some fantacies. And as for the single part well It was a living Hell. In fact I am going to be again soon. I would get into the details on what your going through but I have to with hold them.