Hey truthseeker
It was the greatest shock for me that out of "brothers" I have served with for many years and helped personally, some I considered really close friends - none contact me to even say "thinking of you".
It can hurt, I wish you all the best just let the feelings be what they are and the hurt goes. I have to remind myself that they only know conditional relationships, and that they are emotionally limited.
My goal for this year is to find some real connections and friendships.