Is there anything I can do to help him?
Unfortunately, no. Nobody can help them but themselves. If there was an actual way for supporters to help their sufferers when they were in that state, who ever figured it out would be a millionaire. I know I'd pay good money for that secret! All you can do is respect their boundaries, and ultimately take care of yourself.
@Becksknox, Everything you know about relationships, throw out the window. PTSD is game changer. A lot of times, in the beginning of PTSD relationships, there is a good stretch where the sufferer isn't very symptomatic. Then *BOOM* it hits. It's like the old commercial... "this is my vet, and this is my vet on PTSD."
To begin to deal with this as a supporter, you have to take two steps (and this is the collective *you*, as in all of us). First you have to open your eyes and look at the reality of the situation. You two may be madly in love, but that isn't going to make the relationship work. Secondly, you have to learn to give up some control. There are times when the PTSD is in charge. Nobody can fix that. There are more productive and positive ways to handle certain situations, but you cannot change anything. You have to honestly make peace with the fact that he may be symptomatic the rest of your lives. There is no cure for PTSD. Sufferers just learn to manage their symptoms.
Just a couple things I picked up on... and some advice.
We haven't had an unstable relationship and it is actually very strong, except for the flips he does in the spring. Together we are eachother's rocks but when we are not together his flight instinct kicks in.
Rose colored love-glasses are a thing. It is really easy to focus on the good times and not to see instability. You've been together 18 months, and he has had these "flips" twice, once for a month and a half, and now. I think that is why we are picking up on some instability. But guess what? A lot of PTSD relationships can be stressful and unstable like this at times. What you need to do is embrace the fact that your relationship has some instability, then consider that before moving. Can you handle the next time he does this, but away from your home-base and support system, and in a strange city alone?
he was the one ready and excited to start new and be father away from the kids' dad.
I get this, I really do, but this is another situation where you have to take the rose-colored glasses off. When he pulls away from you, he pulls away from the kids too. I get the struggle... really. I am a single mom too, and my kids are very attached to my vet. We have been together coming up on 3 years, but we do not live together. It is more because of me than him. While I am patient and understanding with the PTSD dance, I cannot expect my children to be. Over time, it may change, but that's where we are at right now. You have to stop looking through the eyes of love, and look through your mom-glasses. What is the best thing for your children at this point in time? Can he deal with what is best?
It is possible to have long and healthy PTSD relationships. It really is, but you have to know PTSD... and you can't know what you don't see. It's a hard lesson to learn.