Solara- Therapy may not work for him but honestly I didn't see you being very solution oriented in your response. Toughlove is one thing but thats a little extreme, don't you think?
Animalliberator- It sounds to me like you need to trust SOMEONE. Maybe it's not a therapist. I have talked to numerous PTSD sufferers who didn't have a good experience with therapy. As my boyfriend said, "It's humiliating to pay someone to talk to you." He had numerous bad experences that eventually just disgusted him so much with the profession that he decided he was done.
That said he talks to me. And if he didn't, or if I couldnt talk to him about my deepest secrets and sorrows, I'm not sure if there would be a relationship there. Yes it takes a lot of bravery, but it reaps huge rewards. After all, your wife IS someone you should be able to trust with all of you. If you can't and you have children together, how does that work for you, exactly? I was in a relationship where he was uninterested in knowing my secrets and being intimate and he closed himself completely off from me. (Unlike my current significant other he did not have PTSD) The sex was terrible. The sense of feeling judged and uncared for was a nightmare. The alienation of living with someone who would prefer not to know you is awful. Unfortunately we have two children together...
Maybe it's not too late for you and your wife, but if you keep hiding from her it will be someday. I don't know anything about your relationship, but I would say she would be the place to start...I bet if she knew you were feeling this way she would reach out to you too. Good Luck.