[Simon looks doubly confused by that, but it doesn't even cross his mind that anything would be going on between them. He knows what Matt did, but not why. Not the whole story, anyway. He just knows that Matt has a temper and should probably be in prison after what he did. Giving him a cautious look, he focuses his attention on Nate, who is already shaking his head.]

I said we could talk tomorrow, Simon. I can't do this right now.

["Sweetheart, please...what did I do? Is it because I missed the show? Babe, you know I wanted to be there. I just couldn't." He feels awkward as hell having this conversation with Matt right here but he's going to have it no matter who's around, basically.]

It's not-! It's not that... I mean, maybe it partly is. I don't know. It's nothing you did, no one thing anyway. I just... I can't do this.

[He casts a quick look to Matt, as if trying to make sure that he's still there, that he hasn't gone.]