On one end, it would be nice to be with someone who totally gets ptsd, on the other hand, I can barely handle my own shit, and while I am a very empathetic person, I just don't know how two ptsd worlds would work. I picture constant collision, wreckage, explosions.
I have dated people with depression, it was hard if they were in a bout and I wasn't. Up and down. We never seemed to click on timing. We both shut ourselves off from each other. We weren't in a right and proper situation to be cheerleaders for each other because we could barely handle ourselves. But sometimes life comes at you and you fall in love no matter the background of the person, and you can't help that. You can only help how much and how far you are willing to go/handle.
I don't think anyone is totally healthy, we all have our baggage, but I think to get into a relationship, you have to be in a good place personally. You need for your mate to be in a good place as well. Someone on relatively the same playing field, or you are just going to have a seriously codependant relationship that is unhealthy.
Maybe people could make it work. As for me, I don't see it.