At which point did you sign a contract to be his personal chef?

Though his attitude is his problem, you accepting it is your decision.

You complaining here lets me know that you know that he is wrong.
You have the choice of staying in that mess and grumble, or you can stand up to him, or you can leave.

What does he do to make you happy? Have you asked him that? Or do you remain silent when he accosts you?