this person that I had been dreaming for years. Unfortunately it fell apart.
As some one who has PTSD and has also had several partners with PTSD, I see this a bit differently.
Many of us with trauma end up kind of "fractured". We split off our trauma and keep it hidden. Often, when we're subjected to abuse, for example, we're taught to keep that stuff hidden and secret. Even if not, a lot of trauma, like sexual trauma involves shame and so you keep that stuff secret from the people around you.
So, many of us develop this sort of "public face" which is nice, kind, all the good things.
And in the background, there's this other stuff going on... where we're battling our demons... stuff that people generally don't get to see - things like depression, anxiety, addiction, suicidalness, isolating, etc.
But in long-term relationships, that stuff is something we can only hide for so long.
So, to an onlooker, someone with PTSD may seem "wonderful" or "idealised" initially, because all the painful, difficult stuff is hidden away.
For an onlooker, it comes as a surprise, when "things turn bad" for "apparently no reason at all" and they grieve the person they THOUGHT they lost, that they THOUGHT they "knew" initially.
But if you look at it from the inside, the person with trauma was always the same person all along - carrying massive, heavy, difficult baggage and keeping up a polite/ nice front for society and getting positive feedback from people for keeping that divide in place.
I've personally fallen into this trap with a partner too. I still grieve the person I "thought he was". It's like a drug addiction. I'm missing and craving someone who never existed at all. It was a mirage. But at the time, that's who I experienced him being (all the good stuff) and my brain can't seem to process or truly grasp that, well, it was basically all an illusion.
If you think about it, any person who is real is not "perfect" or "idealised" and this version of her turned out not to be real.
I understand the confusion and the compulsion to try and "get back" to that time when things seemed good (too good to be true?). That stuff taps into some pretty deep stuff in our own psyche.
I think you're holding on to a mirage tho and you'll likely end up happier if you work your way through it and try to meet someone new.