I read this fic awhile ago and completely forgot to bookmark it. Burt and Carole are together but Finn and Kurt have never met I think Kurt went to dalton but I'm not sure... Anyway the first time Kurt and Finn meet Blaine is there with Kurt. Kurt and Blaine have been best friends since they were very young and have been dating since they were about 13/14. It's quite a long fic and I think Finn is a bit angry and mean but maybe not. I know that they get engaged and that burt is supportive as is Carole. Thanks in advance if found :)
Source:
http://gleefinders.livejournal.com/671936.html