You can't really blame him, Spike. He's just been through about as major a shift in self-knowledge as you can get, and it's going to be a while before he really accepts he's doing all right with it!
He appreciates the understanding look, though, and the comforting words, and does relax for now. "Thank god! I mean, I thought it was going okay, but it's a bit hard to believe after all that upset. And having Mistletoe Day at the same time really didn't help!"