So, Webb does sound a little curt. But here's how the original Post article, which Will cited as his source, described the encounter:
When Bush asked Webb, whose son is a Marine in Iraq, "How's your boy?" Webb replied, "I'd like to get them [sic] out of Iraq." When the president again asked "How's your boy?" Webb replied, "That's between me and my boy."
"That's not what I asked you"! Snap, Mr. President! You tell that man with a son whose life is put in danger every day by your policy decisions how he's allowed to feel about about it!
"How's your boy?" Bush asked, referring to Webb's son, a Marine serving in Iraq. "I'd like to get them out of Iraq, Mr. President," Webb responded, echoing a campaign theme. "That's not what I asked you," Bush said. "How's your boy?" "That's between me and my boy, Mr. President," Webb said coldly.
Kind of embarassing for George Will, though, that the actual facts screw up the point he was trying to make. You'd hope that after this snafu, the Washington Post will start to supply its writers with computers on which the cut-and-paste functions work, so they wouldn't be forced to resort to paraphrasing earlier news stories to themselves via smoke signals.