- Stuff going on you're not aware of?
- Things spiraling out of control/becoming self-directed?
- You forgetting what you did or said a few months/years ago, and getting mad on others in consequence?
- Your intentions not well understood?
All of this is on you (the leader). That's reason for resignation.
The behavior around it is just childish IMO. I wonder how this affects him being able to do his job.