Husband, We're in somewhat similar situations. Our W's are starting to show signs of wanting to connect. This presents itself with it's own set of rewards and challenges.
I hope the "ice continues to melt" for her. Your trip with your son sounded magical and provided a well-needed break for you.
You're more willing to try to influence the R than I am, and show your interest in her. It's like you've decided you want her for your girlfriend, and are going to win over her affections. I'm more hesitant to do that, because she's still sleeping elsewhere. We each know what's best for our situations, or make mistakes, and try again.
As hard as it is, it seems like our R's are where they probably need to be. Our W's have to change and find their own happiness, we have to learn to be more independent without our W's, and a better partner, and we have to create a different way of relating with our spouse.
It does have the feel of dating again, with the inherent excitement of the unknown, and a gamesmanship aspect involving deciding how much to pursue, and when to let her have her space. At this point, it's about each person cultivating happiness in their lives, and being grateful when there is connection. At some point, just like in dating, we will have to learn how to integrate conflict into the R. It's too soon for that for each of us.
Good luck to you! You are certainly still in the game.
CL
CL 53 W 54 M 20 yrs. 03'-09' Separation + Old Patterns + GAL 10-14' Piecing
"The Master allows things to happen. She shapes events as they come."