It sounds as if you are feeling a lot better, and that's good news. Glad to see WW has soften a little. Let me give you fair warning about the holiday trip. This is not an absolute, but many times following a vacation, the WW will suddenly pull way back again. Even if she enjoyed the trip and got along with her H, if she's not ready for him to come back home.......or thinks he might believe they are getting close to reconciling, she'll detach, go cold, and send him spinning. So, don't be surprised.
I really hope you all have a great time. Don't let yourself get carried away and try to turn it into a romantic situation or attempt to reconcile. For goodness sake, stay away from any R talk. Just enjoy it for what it was meant to be........a fun family holiday. Let her see this new man she has put out there on the market......available.
As soon as you get back home, resume to your detached position. I promise, if she wants more, she'll pursue you. Don't be eager to accept any invitations from her when first coming back from the trip. She needs to work to get you back. Know what I mean? Make her work for you.......b/c you are worth it.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!
