Tammy. Nice to "meet" you. I am also in Australia and also have a hubby with PTSD. I have just read thru all of the posts in this thread. It was like reading a story book with suspense, lows and highs! And I am so glad to see it is now at a high! Very happy for you. Hope the money thing all works out.
My husband and I are in a similar sitiuation in terms of financial stress. I synmpathise with you trying to get Alex back into the workforce. Only thankfully my husband has not really stopped working for more than a few weeks, right after his trauma and a then a week at a time twice since.
Don't ever forget what a blow to a man's self esteem it can be to not be able to provide for his family. That combined with the other dramas you have had with MCRS cannot have made Alex's road to healing any easier. I suspect he resists honestly addressing your queires about returning to work because he feels a sense of shame about a lack of desire for it, or it just all seems too much, and so he gets angry with himself and that anger is thrown at you. Perhaps.
When I also read that you are not working and that Centrelink are on your back about it, it made me wonder if perhaps there may be some sort of simple venture you could enter into where you can work together. I also realise this could a bad idea, given your need for a break now and then, but perhaps if Alex is so dependend on you and the stress of both being separated from you and restarting work at the same time is so great, this may be a good way of easing hm back into the saddle? Especially if you have young children, perhaps something you can do together from home? Delivering catalogues in local letterboxes for example... If nothing else but to renew Alex's self esteem in terms of having a job may be a big step, regardless of the status or quality of the job.
I can also identify with you in regards to Alex's treatment. I believe it is the same treatment that my husband has had one proper session with, but I will have to look it up to check.
Best of luck to you.