She is probably excited about her move and is on her best behavior. Enjoy!
A couple of thoughts.
One is for you to do something "romantic" at your new location. Carrying her across the threshold might be good or having something like a romantic restaurant dinner planned or flowers delivered. Either could backfire, but if she is focused on a "new/fresh" start in a new location, she might have some plans as well.
If things continue to go this well, she is likely going to want to ML at some point. If so, you might want to be mentally prepared both for that and how you will handle it. She could freak out, have morning after regrete, or it could be wonderful. How you react may have a significant role in how things end up.
One of the things that helped my wife transition from SSM to ML was foot massage that I gave her. I know your wife is different than mine. But I am reminded of the scene in Pulp Fiction where Travolta talks about giving his gang bosses wife a foot massage. He explains that it is only a foot massage, then he goes on to say that a foot massage is never really just a foot massage. I tend to agree with him. But be carefuly as you don't want to push her away or freak her out.
You might want to discuss this with your IC prior to moving.
Again, enjoy things, you have certainly earned some good time (based on what you had to put up with and on all that you have learned and put into action).
I wish you happiness and that you enjoy the fruits of your GAL and DB'ing.
>43 years of marriage--My wife and I are now closer than we have been in decades. I believe that my SSM is over.