She's a self-inflicted obsession

Me: What?
Him: What?
Me: What?
Him: I DON'T HAVE TIME FOR YOUR BULLSHIT TODAY I'M ALL STRESSED OUT ABOUT THIS BULLSHIT AND THAT BULLSHIT AND I DON'T HAVE THE PATIENCE RIGHT NOW AND YOU'RE REALLY TRYING ME HERE.
Me: What?

PS: Why do we use the dative case pronouns? Shouldn't it be, "I" and "He"? Wouldn't that be the correct short form of "I said," and "Boyfriend said"?