Stuff - I really am in awe of you. You've come a long way. Postponing the wedding was such a brave thing to do and a hugely powerful message to your P.
Although I understand what Imperial and others are saying/warning about hysterical bonding, I think it's a bit harsh to piss on your parade when you've just made a hugely courageous move. I think you are now well aware of how much work and pain there is to come and are under far fewer illusions about your 'beautiful' man and your relationship. I hope you explore your issues in counselling together and/or separately.
I think you know that you are both, weirdly and ironically, in a honeymoon period - a post cheating, post trauma honeymoon. You feel huge relief that you've made this decision and are kind of celebrating together in an odd way. Yes that might be unhealthy but it's understandable - and a million times better to be shagging and bonding during this unreal period, than hurtling towards a disasterous wedding.
I wish you all the very very best xxx