That's easy to do
@redsandy... Playing armchair psychiatrist. As supporters, we tend to just want to "fix" or "help" and we can't, so then we settle for trying to understand what's going on in their heads. That never works, because everybody is so individual, there's no way of knowing.
There are only a few things we can do.
1. Be patient and calm. That's easier said than done, but just relaxing and rolling with it not only does wonders for YOUR mental health, but it helps your sufferers as well. They can't deal with their own high emotions when they're stressed or symptomatic, so they really can't deal with ours.
2. Set and enforce your boundaries. Being a martyr doesnt help. Sacrificing yourself for your love isn't romantic, it's codependent. It only works in fairy tales.
3. Learn about PTSD. Research. Understand how the disorder works. It makes miles of difference. Miles.
4. Take care of yourself, because your sufferer isn't always going to be able. In the event of an emergency, put your own oxygen mask on first.
Also, vets with combat PTSD are no more likely to physically abuse their partners than any other vet. That's a myth, and sadly a popular one. If he isn't physically violent with you otherwise, his PTSD isn't going to make him do so. Even with PTSD, he still makes the decision to abuse.
Don't get me wrong, PTSD can cause feelings of rage, and when stressed or triggered, and some sufferers will lash out. Combat vets have been trained to fight in "fight or flight" situations, so sometimes some vets can be aggressive. That's where boundaries kick in. Aggression doesn't equal physical violence, but you still don't have to tolerate it. Set your boundaries. I will not tolerate name calling, breaking my things, yelling at my kids, what have you. Decide what your deal breakers are. The most important boundary for all of us should be that It is never ok to lay hands on another person in anger. I don't care if my vet had PTSD, a brain tumor, devil possession, and a pick ax in his skull... Nothing going on in his brain justifies him hurting me physically.