He definitely didn't look bothered by the joke in the moment and I imagine if he was sat around with Rock and a few mates and it was said he'd have laughed it off. He's obviously looked at his wife and thought "I've got to do something here".
He even slowly walks up as if hes deciding what he should do and gets too far to not go ahead with it. Think he's more angry as he sits back down from the adrenaline of it all.
He doesn't come off well from his decision. He was nailed on for the Oscar, he could have spent the next 10 mins coming up with a line to say about Rock in his speech rather than responding to a joke immediately with violence.