I'm looking for a fic where Blaine and Kurt go to a concert or some show and Blaine goes back to the theater because Kurt forgot his wallet. Ther is an explosion and Blaine ends up deaf. Kurt feels really guilty and at first doesn't go see him at the hospital but later they make up and live together.
Blaine meets another deaf gay man in one of his study group or something like that and the guy hits on him but he refuses. I think Kurt finds out and is really upset about it but everything ends well.