Welcome to the forum Kaytie, glad to have you here with us all. The best things you can do is merely support him, talk with him, and try and keep him as open, honest and talking as much as possible about everything he feels. The more he does this with you, the less issues will develop between you both. A PTSD sufferer must talk openly within a relationship, and the partner must also return the conversation. It is a deep level that must be communicated at all times to ensure issues that cause stress are minimized.