I’ve just spent an hour reading only your posts across three threads OP. Apologies for any repetition of content in any of my post, I just don’t have time to scan 2000+ messages.
I am surprised at the posters who feel they need to express their frustration at the fact you aren’t coming out swinging. This sort of grief is worse than if he’d died, I think. Were he dead at least your shared past would be sacrosanct. But how he’s gone about this is frankly sadistic.
Your H sounds to me like a coward who is hiding from what he knows. If he genuinely thought he was in the right in any way, I suspect he’d be much kinder. If it was simply that he fancies the OW then why not say that? ‘You have been a good wife but the spark has left for me and I want to try with her.’
Would that be so much worse than what he’s done? Certainly it would involve him ‘getting the blame’ but the affair is apparently no longer a secret to anyone but the poor bugger she’s married to. It would also have had the benefit of being honest.
I feel like someone (not you though) should tell OW’s H, ASAP. Preferably with proof she can’t deny. Why? Because, tactically, when dealing with people like OW (and H) keeping secrets only ever works in their favour.
I am not a psychologist but I do wonder if H is a narcissist. This word is used all the time nowadays but he seems to be reading from a playbook. The trading-up (in his ego-addled perception) the full discard, deflection, reversal, you’ll have read it all.
But - if not, and he’s just some chump whose ageing fantasies got the better of him, I think one day he’ll wake up at 2am from some half-dream and hear his conscience speak to him with perfect clarity ‘you tore her apart for no reason at all.’ It’ll be too late, but it’ll come. Hell mend him. I just really really hope you’re going to rebuild. It’ll take time but I think you’re a special person and I have everything crossed for you.