The allegory use is being taken too literally. I simply meant the symbolism to represent PSTD, 'the beast', as one of the many layers of my loved one. On MyCombatPTSD threads veterans refer to it in this manner too. So at times it masks him, yet I still know he's there underneath it all.
I get it. I'm not trying to read too much into an allegory or metaphor. And I sense that you have a lot of compassion for him.
I'm trying to point out not just an allegory you used, but an overall trend in your post. It is something that is very important and difficult to understand.
Yes, he has PTSD, yes, that is a part of him and there are other aspects to him.
However, there is a great danger for a suporter to say PTSD is a mask or a curse or beast in this allegorical sense. It's really important to understand that it's a part of him. There is no cure, and especially in his case, there is little reason to believe it will improve. This is him, as he is.
Many supporters struggle to understand this and that love isn't enough to get the man underneath it all to come out.
In fact, supporters do a disservice to PTSD sufferers by forsaking all their own need to try and help unmask or change or save someone from the very real beast that is PTSD.
It's a very hard thing to face this reality. It means that you can't fix him or rescue him, especially when he is rejecting appropriate options to get better. Additionally, getting better doesn't mean the beast goes away.
Never ever excuse his behavior as not being him but just the PTSD - you do a disservice to his recovery and yourself if you do. Thinking of PTSD like its this beast and not at all him is a good way to end up inadvertently enabling him to continue as is, to stay on the hellish place that he is in, and to not get better.
Also, it's not as simple to say you are the beauty in the castle - you have "stuff" that you bring into the relationship too. I'm guessing you know this, and this is not a judgement on you at all.
You are a very kind and compassionate person, and I hope this works out. In order for both of you to be the best you can be, it's good to take off all the blinders, as much as possible (and we all have blinders, and we all need help and outside feedback to see things more accurately.)
In the end, you know him and you better than anyone here and the choices are up to you.