First, realize that not a lot of this is in your control right now. Talk therapy is about the only thing that will help, over time, to regain control, to retrain the brain.

You're going to have relationship issues...but hopefully if he also learns how to understand some things about PTSD, the problems will lessen. I have yet to find anyone who knows all about PTSD, and that includes people with the disorder and expert therapists. But do remember that when things aren't going like you want them, it's probably because of the disorder and not "you."

Here's a great book to read, and read, and reread... The Post Traumatic Stress Disorder Sourcebook by Schiraldi.