So I tracked down my old PO who was booted out of the cult 3 years ago. He used to basically just say hello and just walk away. I sent him a message on FB saying I hope he's well, complimented him on how good he looked, and I sent him a friend request. He didn't accept it, gave me a very brief description of what happened, said he thinks of my mom often, and told me to take care.
He still seems quite cold and heartless toward me.
I really would like to befriend him now that we're both out, but I'm really not sure what to think of him.