At the end of the day it is NOT your responsibility to make sure HE understands your symptoms so utterly and completely to the point that he is not hurt/upset by them. In a relationship it is important to be as honest as possible, but my husband will NEVER understand what I mean when I say he cannot touch me. To a point, it still upsets him. He wants to hold me/touch me/be intimate with me and it makes him sad when I am at a point that I cannot handle that kind of closeness. Is that my fault? Absolutely not.
It is at this point YOU need to take control. If he doesn't get it right now, he just doesn't. Who knows if he will. That is not your priority. YOUR priority should be you and what is best for your peace of mind and comfort. You cannot begin to heal until you feel in a safe place to do so. I could NEVER go to my T and talk about my assault if I knew I would have to come home and relive ALL of those fears again with my H. When I am in a place where we can be close, I allow it. When I am not, I don't. That is one of the first steps in my recovery I took control of. I would say it is time for you to do the same.
It is not easy. It hurts. It makes me sad when he is sad, but my body belongs to me and I ONLY share intimacy when I feel comfortable in doing so. I drew that line in cement and if my husband refused to understand, he would either have to find a new home to sleep in or I would. I would not tolerate being guilted in/pushed into having a sexual experience that I did not want again. You shouldn't either.
I am not saying it is easy. I know it isn't, but it is important. Not just for you, but the sake of your marriage as well. You will grow to resent him more and more and this issue will create more of a divide that is very difficult to cross. Lay down your boundaries and stick to them as it is THOSE boundaries that will allow you to begin to feel safe.
I pray it gets better for you.