I think your approach of simply ignoring it is the best approach (oh, and how nice of OW1 to say you don't deserve to be hurt anymore - after she spent all last week trying to woo back your H!!!!).
I'd say, the biggest clue here is that it is seriously time to drop the rope. If this is H's current mindset, then give him what he wants. Don't pursue. Tell him (after you return from New Years) that in light of his message, you've rethought your April deadline and are taking him at his word - and will be needing him to take DD every weekend so you can date!
Honestly, LNL - he's just such a mess right now, it's laughable. Time to create your own East Bay Mystery Man, like GBO has
Have fun on your weekend.
Do NOT get drawn into ANY conversations with H on this email now - do not reply, do not talk to any OW, nothing, nada.
