Hi Tam, I think you did just the right thing - breezy, pleasant, minimal. Contact like that from him is a baby step. No need to send him a 'no contact' message. The main thing to work on is receiving, responding, letting it go and moving forward.
If you are in any doubt, re-read the last resort technique as this is what you need to apply. And if you feel the urge to initiate anything - post here first!
You're doing well xx
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus