Trusting, Don't forget manipulating as well. Funny how he has to remind you or the kids about his birthway. What a kid! He should be worrying about whether his STBW will remember and make his day special...LOL!
I wouldn't change my plans for him. In fact, unless the kids are scheduled to be w/him, they wouldn't cancel either.
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.
