That is an interesting request. Her bridging that gap to your family definitely makes it seem like she's not so eager to split the family. I would call it a baby step personally.
I've seen all this broken down into 4 phases on here: 1 reduce negative emotions; 2 friendship; 3 romance; 4 recommitment.
I think you are between 1 and 2. So, you want to be careful not to have too many setbacks. But at the same time, be careful not to shove down so many issues, especially when it comes to the kids, that you build up resentment.
In reality, if you were D, you probably WOULD have the kids this Christmas. At some point in the future, it might be good to shake things up a bit - to let her see that this can't continue forever, and if she doesn't want to R then D will happen, and she will have to share holidays and set up a formal split parenting plan. Which probably will be less convenient for her.
Michelle - Proud DR Rockette S: 28JUL07, D'd: 29OCT09 http://tinyurl.com/27j9qo2