Jonn' Jonzz
He had lost friends before but that never makes it hurt any less. Batman was complicated and hard to understand. But he didn't have to be a telepath to know that Batman cared. He just entered the Monitor room and he stayed watch. Then he saw an envelope with one word on it, Jonn'. He picked it up and read it.
Dear Jonn',
I didn't trust you at first. It wasn't just the fact that you didn't look human. I didn't trust Superman at first either. But you proved to be a good friend and ally. And I was wrong to distrust you.
You've always had a word of wisdom to share and know what's best for us. You're more than willing to do what it takes to keep us safe and well despite your own safety. You've been the consular to us and a guide. I'll miss you.
Your friend,
Bruce
Jonn' gave a small smile. He knew he read Bruce's mind right in those rare moments. It had told him that he cared.