A/N: Post 4x07.
It wasn't that Blaine was pissed at Sebastian for the whole trophy thing. It's just a trophy and it's not like he wasn't pleased with the pretext to visit Dalton. Contrary to everyone's notion of how oblivious he is- which he could be at times- he did notice the look on Sebastian's face. A blind man could have seen it, so how on earth was he not too. Besides, subtlety has never really been Sebastian's thing.
It was a look he was familiar with. Brittany called him out on it once, way back then when things still made sense. She said it was how Santana looks at her when she thinks Brittany doesn't notice. So does Mike with Tina and she also mentioned seeing Puck glancing at Quinn with that look. She asked if they met after Glee club to practice it because Blaine's really good at it.
And now it's Sebastian looking at him with that look.
Blaine's pissed. He's pissed that he notices it. He's pissed that it's directed at him. He's pissed that it's coming from Sebastian. And most of all, he's pissed that it makes him feel like there's a butterfly riot in his stomach.
He knows he's being rude and petty when he gives short answers and just spares him a glance, but what else was he supposed to do? Blaine glances out the window, the passing students, the ugly vase that still stands at the corner; glances at everything except Sebastian. Until he no longer could.
"…here to see. Captain of the Warblers."
It catches him of guard, what he sees in those green eyes. It has been a year, they've barely talked since Regionals and Sebastian's looking at him like that. Blaine doesn't understand it, it doesn't make sense. So he takes the easy way out, as he had always done when it comes to anything Sebastian related, he denies what is as obvious as day, and says, "I thought you were Captain of the Warblers."
I don't think I'll fully get over how screwed over I felt after that episode.