My guess is he's expecting to get shrieked at, if Belle is even there at all, so he's putting up a wall of anger in hopes it won't hurt so much when it happens. Self fulfilling prophecy.
My hope is that Belle doesn't play into that. That she's still there waiting for him is a very good sign.
As for his fashion sense, I -really- want an outfit like that. Love it.
He definitely looks like he's waiting for something to happen though I can't tell if he's meeting her eyes or avoiding eye contact entirely... very interesting ^^
Oh, his face! I have seen that exact expression on my dog...and it usually results in my humming soothing noises and rubbing his ears. At least she's there, Beast---take heart!
He's glowering - "I can do this; I can take whatever happens next; I've gone through worse; I always expected this to happen anyway; I am a monster after all; maybe she should have expected this too...." Or at the very least, he's still bracing himself for her reaction. Which, from the looks of it, is to be PETRIFIED. Uh-oh. That's to be expected, but still: uh-oh!