Your boss is just a person
I know you have high expectations for your boss. You should.
I also know that they let you down sometimes. That’s frustrating.
The thing that I hope you will remember is while your boss should be expected to operate with a high level of integrity, competence and care, they are also just a person and they are going to screw things up once in a while.
This is not meant to excuse their miscues, but to contextualize them.
It can be easy to take their mistakes to mean that they don’t care about the things you care about or even that they are out to get you, but it’s more likely that they are just a person and they swung and missed this time around.
Don’t accept chronic issues. Don’t accept duplicity or dishonesty. Don’t convince yourself that they shouldn’t be held to a higher standard.
But do recognize that they are just a person and sometimes they make honest mistakes too.