Did he D/C on you? Because losing to a high-win player usually isn't that rage-inducing alone, at least not as much so as losing to a much lower count player.
I think it's interesting that he packed Golem, and especially one with Explosion.
441 D/Cs and counting, baby!
*Contrary to popular belief, this is not a compendium of people who disconnect on Wi-Fi. See: Seinfeld, "The Comeback."