Thanks for the help! It has been a revelation to come across this site. I'll start digging through the Carer's section as well.

Two other items that I forgot to mention in my first post.

1) Is it possible/normal for someone with PTSD to be functional at work, but close off to the world when home? He often talked about the difficulties in working with some of his co-workers, but everything usually sounded like they were the ones who were the problem, not him. I never met them, so just assumed he had the bad luck to work with some folks who were difficult to work with.

2) I also noticed on more than one occasion that he had deep scratches on his shoulders and once on his upper chest. I asked at the time, and he was like "Oh, I must have been scratching myself". Upon reflection, while they weren't severe enough to draw blood, they were obviously not recent. Do you think this could be a form of self-harm? I've read about "cutting" but never found anything about scratching.

Also, I have been very respectful of his space during this time, with one phone message and one email in a month's time. Both were to just "check in" and say I hoped he was ok. Do you think even something like this would be intrusive, or does it help the person with PTSD to know someone is thinking about them?