I immediately cut off all communication with him (email, Facebook, phone) because I recognized that this would make things more difficult for both of us.
We are in the same circle of friends, however, attend the same church, the same young adults group, and it is impossible to completely avoid him.
I do think the fact that he ended the relationship so abruptly — after starting it off so intentionally with a phone call to your dad — is a bad sign.
That and the fact that he has allowed your friendship to lapse to the extent that you've been avoiding him for the past year.
I'm glad you wrote and know from my own experience how hard it is to backtrack to "just friends" with a former boyfriend.
It's made even trickier when the two of you occupy the same social circles and Christian community.
You've said you still harbor hope that he's still interested in dating you again.