Future Fic.

[http://users.livejournal.com/_alicesprings/]

I'm trying to find an older future fic, written after season 2 or 3. I don't remember much about it except that it was very long, and B/J owned an ad company and worked together. They were having problems, and had been together for a long time, 10 or 15 years.
I remember at some point they were dressing up to go to a dinner party, or awards show or something. At another point Brian (or Justin) was up early and left for the office without Brian, not wanting to share a lift. They were living in a house, not the loft.
And I think it ended with Brian (or Justin) thining that the other was going to leave them. I think they decided to go away on vacation, and put the business on hold for a while until they sorted things out. I remember Brian rushing home (at the urging of Cynthia?) and finding Justin's bags packed.
Pretty vague, I'm sorry! I don't think it's an LJ fic, and it's not a bad!fic. Is it ringing any bells for anyone?

ETA: Sorry, I actually found it myself, after much searching! It's Worth the Fight by eolianbeck

ETA 2: And almost simultaneously, potentiial found it too! Thanks so much, I thought I was too vague for anyone to get it :)