All the advice I've read in this thread seems valid one way or another, but RonH's is the brand I would go for if possible.
If you can't have a brief but candid conversation, in private, with him to explain that it really hurts your feelings and moreover seems unfair that you have to beg for your wages, which you've well earned, only then to receive them grudgingly--then there's little hope you'll ever enjoy working for this guy anyway. And if you can have such a conversation, it might work wonders, though frankly I doubt it.
But at least there'd be nothing to lose.
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