Hi Gemini Lady
I have read your question, but this is the first time I have had chance to sit and reply to you, so please except my apologies, before I begin.
Unfortunately, intimacy can be one of the first things to go, and sometime a long time getting any where near to how it was before. This can happen to anyone who suffers from any kind of depressive illness, whether it be mild depression for a normal stressed life, Post Natel depression to PTSD.
All you can do is except that this is how it has effected your partner, it is not the end of it, but a lull in proceedings so to speak. The more you make a fuss about it the longer and more stressed he could become.
My husband and I do joke about this now, as he gets the idea in his head, but does not go any further very often.
Our take on this is also, is that this is not what our marriage is all about, there are other things too. That is just an added bonus now, as we are still together, despite PTSD trying its best to wreck this at times.
So take your emphasis of the intimate side of your relationship for now, give him a break, tell him you understand more about how PTSD can effect every part of his life, this included.
He is angry when you mention it, possibly because he feels a failure, and not the man he should be, which to be honest can be a male ego issue even when PTSD is not in the mix.
Just make the best of it, and except that no and again life will be good for one night. But then maybe weeks or months before the next.
Stand back for a while, and look at your marriage as a whole, try and build on what is left. He may be saying he wants to end it all one day, and apologizing with everything he has the next.
Take more care of yourself for now, it help further down the track if you learn to do this now.
Amethist