I think OW's H finding out about the A is causing it to die down in my situation (he called H and told him to stay away from his W). At first, I was worried that it would cause them to enjoy the secrecy even more so. I still am worried about that, after learning here that H should be the one to end it, in his own time. I try not to think about it.
But yes, I suppose if its done, its done. And in the long run it doesn't matter who ended it, as long as WAS is completely back, and committed to make it better.