Hi Randy, I get a sense that even though you are divorced, you are more in favor of developing a new R with XW than looking to move on and perhaps explore other new relationships. If that is the case and it seems your W is pondering this possibility as well, then why not see what happens, but the key with going with the flow is to drop all expectations you may have and focus on what you have now, keep the positives going, keep doing what brings you closer. As for asking her to move her things out seems like a strategy that works against this goal.
Start considering something different for this year's vacation. She didn't say she didn't want to go with you. She expressed she didn't want to repeat your prior vacation. She wants to do something /go somewhere different. She wants to experience something new... a new adventure.
