I'm pretty certain my boss doesn't like me. Not outright

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I'm pretty certain my boss doesn't like me. Not outright hates me - otherwise he would've fired my ass long ago. But just enough that I notice he keeps a closer eye on me than anybody else, any little mistake I make gets met with a harsh retort while anybody else who makes the same mistake just gets a mild rebuke, he gives me shorter deadlines than anybody else for similar tasks, and various things like that. The worse part is that I have no idea what I did to make him hate me as a human being, as I'm polite to everybody in the work place, I show up to work on time, and I even voluntarily come in early or stay late to make sure a task is done and done correctly.

Near as I can tell, I can only GUESS that he doesn't like the WAY I'm working. That is, how I set my priorities, my tendency to do one thing at a time as opposed to multi-tasking, and I rarely come out from behind my desk to just socialize with anybody nor do I go to lunch with him or anybody. And things like that. But he's never told me outright what he doesn't like about me, and I'm too much of a coward to ask because there have been times I've come to him with questions about various job-related things and it's pissed him off.

And if I'm being honest here: He seems to get along just fine with almost everybody else except me. And even my co-workers have observed and told me, in confidence, that they notice he is a little harsher on me than anybody else.

So what should I do? Should I just quit and find another job? Or should I try to change my work habits?