He's confused by the nod-headshake combination, but heshe's patient He gives her time to slow down, to collect herself, and find her voice again. And when she does, he barely resists wincing outwardly at her words. They were stuck together too... And it couldn't have gone more differently. He feels like an ass.
"I'm-- so sorry, Lydia." He can only imagine how it went. As cold and distant as Stiles is now. How uncomfortable he is around either of them. It's hard enough to take in a large, open room, he imagines it's a thousand times worse in such a small, contained space.
And she loved him. No, not loved. Loves. She's in love with him and he's broken her heart. For the second time. And it's not okay. None of it is okay.