Ted looks down at her with a worried frown, that says a part of him definitely still feels like this is his fault, going through various 'if it weren't for him...' patterns. At the very least, him wanting to go through with the gala. He knows he shouldn't think like that, but it's very hard not to.

He looks over at Sherlock. "Could you get me a chair, please?" he asks quietly. He wants to be close to Joan, but he's been on his feet more than he should.