Sigh. He's firming up the protection of his pawn on the e file, while at the same time making room for a King side castle. At first, I thought Pawn to g3 might be considered a Zwischenzug, but in reading wikipedia, I see I was mistaken.
Well, I suppose I have to consider my next move. Fine.
I probably shouldn't say this, but what the hell: I have not yet begun to fight.
Having duly jinxed myself beyond repair, I await your next move...