I read this story a really really long time ago, and I'm pretty sure it was on BJFic.Net, so I'm hoping someone has a copy or the author has an LJ or other website.
If I recall correctly, Brian and Justin lived together in a house and [I believe] had two young daughters. Brian has apparently been off at war. Justin looks out the window and sees a car pull up in the driveway, and two men in suits getting out. He assumes they're coming to tell him that Brian died in combat, so he sends the girls away. Then he sees Brian get out of the backseat of the car. He returned home from war because of an injury. Well apparently, Ben was also a soldier, but he died in front of Brian's eyes, and Brian was traumatized by this. He develops some PTSD symptoms and shuts down emotionally. I think he and Justin even end up sleeping in different rooms. I also remember Brian telling Justin he could bring other guys home with him because Brian couldn't be intimate and meet Justin's needs. I think there was a scene in which Justin actually did this. It was pretty angsty, and I don't even know if it was finished.
I may be mixing stories up, so anything similar will do!
Thanks, Metka
here is the link:
http://web.archive.org/web/200512010651