"How fucking dare you accuse me of cheating?!" Kurt screamed at Blaine, right up in his face by now.

The two had been fighting for such a long time they didn't even know who was at fault here.

"Because, Kurt," Blaine yelled back, "you don't kiss a 'friend' at a bar like that! Jesus, do you think I'm blind or something?! Who was he, huh? Was-was he some fucking prostitute?! Or did you just get bored of me and want a good time?"

"HE. KISSED. ME." Kurt shrieked back at Blaine, knowing fine well the neighbours could hear. He didn't care at the moment. He was just so angry.

Blaine had never seen Kurt this mad before, but he knew that the soprano was at fault here.

"Kurt, for god's sake, just admit it. I saw you kiss him! Stop LYING to me!"

An angry tear dropped down Kurt's flushed cheek, and this pushed Blaine over the edge. If Kurt thought he could put on the waterworks and get Blaine to feel sorry for him, he had another think coming.

Suddenly, without thinking about it, his hand reached out and slapped his boyfriend across the face. Hard.

Everything was silent.

Kurt reeled backwards into the wall, shakily reaching up to feel his reddening cheek.

"Blaine..." he choked out, shaking his head in disbelief.

Blaine was also shaking his own head in disbelief. Had he really just /hit/ Kurt?

No.

"Oh my god, Kurt. Oh my god, oh my god, are you...? I'm so sorry, oh my god, I wasn't even thinking..." Blaine trailed off helplessly, starting to cry silent tears.

He reached out to Kurt, who just shook his head at him and walked out of the room, hand covering cheek.

Blaine knew it was useless trying to go after him, so instead he collapsed in a heap on the floor and sobbed his broken heart out.