I am just catching up on your thread. I have to tell you that I understand what you are feeling. When my H went to a conference he had PA and came back a completely different person. It was the only time in 15 years that had happened. H had to much to drink... young female enlisted soldier made herself very available and it happened. H was so different because he couldn't live with the fact that he had done it. It kind of sounds like your H is the same way.
One of the things we have been working on that seems to help with separation anxiety is that we make leaving and returning a good thing. Sends flowers while gone, leaves a note on my pillow that I didn't now about. We plan a special dinner or something that we are going to do together the whole time he is gone. It sounds corny but it helps us.
