I'm looking for a fic from a number of months ago. In it Kurt's boyfriend (who I think was named Sam, but this was before we knew anything about the actual Sam, so it basically was an OC) keeps inviting him to New Directions guys night out events, but Kurt keeps declining because Sam's the only one who ever invited him (before Sam was at McKinley none of the other ND guys ever did, even when it was at his house, because they didn't consider him one of them). Sam doesn't know this, however, and gets annoyed that Kurt keeps avoiding all of the invitations. He confronts Kurt, who explains it to him, and then confronts the other New Directions guys. Wow, I remember more of the plot then I thought :P If this reminds you of anything, please let me know.
Edit: Found- Thanks :)