Hi! I really felt for Kallus in the episode, Honorable Ones, and wanted to write this. Here we go!
Kallus entered the star destroyer, many thoughts going through his mind after his ordeal with Zeb on Geonosis's moon. He wondered if anybody would notice him back, like the rebels did with Zeb. He spotted one of his fellow commanders, Admiral Konstantine.
"Admiral Konstantine,"Kallus addressed, desperation for notice in his voice, but the admiral barley lookd up from his notepad as he simply answered:
"Agent Kallus."
He continued down the hall as if Kallus wasn't there at all. Kallus stared after him in confusion. Did they even care that one of their best agents went missing? None of the storm troopers even noticed him, either. He sighed in defeat and walked down to his room, which was dark and barren. He realised that he was still holding the meteorite that Zeb gave him. He placed it on his shelf, sat down on his bed and put his hands in his head in thought. Was he really on the right side? Maybe the Rebels did have a good reason to fight the Empire.
Start looking for questions and you'll get the answers.
Maybe it was time for him to look at some info about the Geonosian's history with the Empire.
Sorry it was a bit short, but I hope you enjoyed it all the same. :)