accept

You really have a very serious problem and unless she comes on here and we hear her side of the story there cant be much we can do.
I am not a great believer in these stress stories, they are usually only excuses. For some reason your wife doesnt fancy you anymore. I am sorry to put it to you but you really have to get your act together. Find out from a lawyer what would happen if you divorce, and then offer her an ultimatum. It may sound harsh but you must tell her you love her but you just cant go on without sex. Dont think women dont understand. They do most likely better than men.