Are you starting to feel some of the backlash described in DR when you see forward progress?
Re: kids... My guess is they feel more secure with you than with H (since he's the one who left) so they reward you for your steadfastness by acting out the anxiety they felt when with him. Um... It's a compliment? (believe me, I feel your pain)
Is it possible that your H discovered a side of himself that he likes when he was with OW, that he doesn't want to lose it, and so he's transferring that behavior to you? This is just a suggestion... Are there other "as if" explanations that would not annoy you?
No, OW shouldn't have been part of your story. But she is. Hopefully you can grow something strong and happy from that load of manure.
Me42, H40 D12, S8, S7 A revealed: 7/13 Sep 4/14; Agreed to D 1/15