I know exactly what you are going through. I can't remember exactly the time, but several months ago I went through the whole 'Why am I feeling this way again about H' thing. I can't say that anything shook me out of it other than time itself.
It sounds to me that either a) H isn't really sure he wants to let you go and/or b) OW isn't pushing, or doesn't have that much influence.
Wish I could be of some help. Limbo Land is a crappy place to spend anytime at all, much less a Holiday. Meanwhile, if you want to have an online pity party, I'm your girl. Sometimes a pity party is just what we need to shake us up. Cry, scream, curse, and get it over with. Catch me here on on email. Either way, I'll be around for you. ((HUGS))