Finally, he realizes that she’s talking about the bridge. The bridge is an important location for the two. That’s where in CC, the two had argued, and where they finally reconciled. He was asked to forget touma on the bridge. The CG of them embracing, was shown on that bridge. Haruki needed a big hint to remember this. He is deserving of that nickname ascribed to him in the CC by the writer of this summary.
He finds her. He confronts her, asking her what she’s thinking; she hasn’t contacted her family at all — she’s been staying in a business hotel on her own. Setsuna apologizes. She had ruined the concert. Haruki chose to confront Setsuna, rather than to cheer touma on. Surely, she was the one responsible for causing two failures in a row — but, Haruki shows Setsuna the e-mail from touma.
‘It was a success, idiot