Dear Nikki,
Think of yourself before you started receiving meds, what was your life like? Now think of your husband without meds. It is imperative that you get your husband into some kind of group therapy (the VA or a Vet Center) where he can relate to others in his condition. This will probably be the most difficult task in your life because the Marine Corps drives the no pain concept into each recruit. This is great for a combat situation but not for a home life. At least you are trying to understand which is a plus. I've been married twice and neither of my wives could grasp the concept PTSD. It was simple to say it's all in your head and sad part is, they were right.. It is in your head but if treated in time there can be a positive outcome. As long as there is no abuse try to stick with this grunt. If he refuses treatment then it's time to ask yourself if "I'd rather be alone, than wish I were"
Semper Fi (always faithful) Namvet