I was reading your latest posts for an update and it was weird how you mentioned a couple of days ago that he hasn't called and then today he sent you this message!!!
You did fine with the reply. Just fine. And you already shown him you are not waiting by the phone for his call by not getting back to him immediately (which you would have, I am sure IF it wasn't for the DBing). So call him when you feel like it, tommorow night would be fine too. Just have a plan in your head not to exaggerate on the great things you are doing-just casually bring them up if appropriate- and make sure you mention things he wouldn't expect you to be doing. In my sitch that makes a difference everytime. And you know, not to say anything about your R and D (I used to make sick jokes about the D too).
I am so happy you got this small but important (and definitely not sad) contact with him.
