Happy, The stage doesn't matter...what matters is that he is reaching out just a bit. Look at the positives and go from there.
I had to chuckle about the drive-in movie texting (yours). He was curious as to who you were texting and I wonder if he thinks you may have been texting a man. LOL!
I hope your son enjoys the camp and that you can find things to do to help you keep your mind off your relationship w/your h.
As for the anniversary, I would get a generic card to have on hand. If he does something for you and you don't have anything to share w/him, you may very well feel like a chump. Get a card...they aren't that expensive. If he gets you something, just say thank you and if you like the item tell him you do.
As for waiting...you can still stand and continue moving forward. Nothing says that you stand still.
Snap that rubber band!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.