He didn't dare to confront me, but played a double role behind my back.
This is often an awkward situation and one that needs to be dealt with quickly and confidently as it can be very damaging to individuals and teams alike.
Finally, he only conveyed his complaints about the workload he received. I listened with all my heart. How do I know if it doesn't say anything? I replied that "this is just your stepping stone; you are tested for promotion. more burden only for people who can finish it. " We shook hands and all was well.
You seem to have found an amicable way forward and probably left his feelings intact which is also important.
Thanks for commenting and sharing your story.