I hope your wife was forgiving. I thought about how that could have resulted in a terrible outcome but he finally was woken enough by her pleas of saying, “It’s me” and her name. I agree with you. I don’t think PTSD is that hard to develop. I have it to some degree (of course I would never, ever begin to imply anything like what one goes through in military combat) due to being beaten and abused in my first marriage. I also worked with a guy that was horribly abused by his father and walked up to him once and tapped him and he freaked out. Another co-worker told me the story. He was a lovely man and I just felt bad. Only God knows the internal demons that we deal with.
God bless you for your service esp due to the way you were treated when you guys came home. I salute you all.