@VietnameseCrispyFish thank you so much for this. I'll definitely look at it.
Thanks again to everyone. I know my anxiety is driven by H actions, and I know during his crisis he really was a completely different person. The reason I have not left is because the old H really is coming back. He does struggle to understand why an EA would cause such anxiety, to him if it's not physical it's not an affair, he no longer dismisses his actions were wrong but he also feels shame and doesn't want to relive it. I'm not excusing him, I just feel that to move forward I can't keep dragging up the fallout it has had, as this seems to take us a step back.
I do realise that I have every right to seek support in healing, and he does try if I do broach it. He's not like he was, he's no longer cold and we are both giving each other more attention. But he's not the empathetic type, never was, but on this particular subject he struggles because for him it was a stupid period, it's done, he feels ashamed so would rather move on. I get it, as no one wants to be reminded they acted stupidly and hurt someone, esp if you do care about them. So to help the marriage move on, I bottle it up. Not healthy, or necessarily fair, but I'm doing it for both of us.
It is a shame I've lost that security and have been left with the consequences, and I know I need to battle my way through, and that if he was a different person he'd help more. But he is who he is, he's not refusing to help or shutting me out, he just sits unable to comprehend so doesn't know how to react. And because it's talking about his idiotic actions, the shame makes him avoid it. So he doesn't respond.
He has said maybe I have an idea of how he should respond, and if he doesn't meet that then I don't get what I need, that he's trying. I think he is right, I probably do have some idea in my head of what comfort I get and how it should be enacted, and when not met I feel worse.
So, I realise for us to be better, and move forward I need to heal myself, for both of us.
All the advice and support has been amazing, you don't realise how much it's meant to me for people to take the time out to offer advice/support. It really is kind of you all, thank you 