Hi Andrea,
My hubby too suffers with PTSD. We've been together as a couple for 5 years now and during those 5 years there is a constant pushing away and pulling back. Educate yourself as much as possible. It helps to understand. Loving him and being there for him has turned out to be a blessing for both of us.....although very difficult on my own self image. Reading and writing here helps me the most. The support you will get here will help through those hard times. Learn about PTSD.