@BlueOrange what would you do to push her away? Would you disappear and not contact her...
I retreated and disappeared more than pushing her away. I never needed to push her away.
She was sitting next to me as I started to write this, and I took some notes about how she handles me. (We've been living together for years, so she's not confident that this advice is 100% relevant early on.)
One thing that she was keen to point out is that there's an upside to a PTSD partner - when they are able to be there for you, they'll be there. (As opposed to others who will be able to be there, and choose not to.)
After 8 years living together, there are still times when I don't reply to messages. This is how she handles it:
There are two possible reasons why I haven't replied: The message hasn't arrived, or I am unable to reply. (The possibility that I don't want to is excluded because we have a track record of talking through our problems.)
Sending more messages doesn't help either way. So the first thing she does is work out "The Here and Now of Me". Where am I? What else needs doing? How long until we meet anyway? Is either of us in danger?
If there are other things that need doing (perhaps she's at work), then she does those things.
If nobody's in danger, then ignoring the lack of reply is an option. (If I don't answer when she asks what I want to eat, then either I take what I'm given, or cope with the fact that I'll have to get something for myself. After getting no food at all a few times, I'm forgetting my phone less often.)
If the message is important and urgent, then she knows that I find emails with subject lines easier, and that I treat phone calls as more urgent than text messages, so she'll try an alternative method.
If I might be in physical danger and she won't be seeing me soon enough, then friends get called, followed by appropriate authorities.
And if she needs me, and I can't be reached? (Or if I can be reached, but I don't have the capacity to provide the support or help that she needs?) Then she calls someone else.
"With PTSD, you have to have a plan B. And C. D and E is probably a good idea too."
At the end of the day, your sufferer is unreliable. They won't always be there. But it's just a more obvious version of what happens with everybody else: Sometimes, shit happens.
(This message reviewed and approved by Blue's wife.)