Enlighten me. 
No great details here. I'm in one. Lots of 'reasons' and excuses: "You're always tired at night" "I try to touch you but you turn away" "You're so busy with the kids" "I don't want you to risk getting pregnant" ... it's all a bunch of crap and the blame is very much placed upon me. The fact that his porn habit is an open secret between us does not help in the bedroom. Anyway. In the past couple of years it's just stopped. I can count on less than one hand the number of times we've been close. Oddly enough, I no longer want it with him. And yet I know that I should try and fix things.
Anyway, what are your stories? Did things improve on their own? Get worse? Did you get help?