Last time I was there, I met the man of my dreams on the dance floor.

This expression is so powerful to me. All I can see him thinking right here is ‘fuck’.
Fuck, because he didn’t hit Kurt like he wanted to. Fuck, because Blaine’s so in love with this asshole that he actually leaped in front of him. Fuck, because Blaine was still a Warbler and he doesn’t know how the others will react to that. Fuck, because he actually does care about Blaine in some way or another and fuck, he really messed this one up. Fuck, because he doesn’t know how everybody else will handle this. Fuck, because Blaine’s clearly agonizing and maybe they didn’t think this through properly. Fuck, because he regrets being the asshole and fuck because he doesn’t know who else to be.