Justin designs a ring for Brian & proposes - Brian cheats/breaks up with him

[ntua.livejournal.com]

I've been searching through my fic folder & bookmarks for this story, but alas, to no avail... From what I remember, the story is AU after season 3 or 4. Justin designs a ring for Brian and surprises him with a proposal. Brian being Brian, freaks out and either cheats or throws Justin out or does something ridiculous to make Justin leave - my memory is a little fuzzy on the details. The eventually reunite, yada, yada, yada... Any help would be ever so much appreciated! Thanks in advance!

FOUND - thanks to ice_addict! It's the classic "A Lesson in Loving" by Mouse (link in comments).

B/J with twin girls - FOUND!

[lorelaimcqueen.livejournal.com]

I read a story a while back where Brian and Justin were together and were raising twin girls. I think they're twins, anyway. It could just be one girl...Anyway, these girls were still in the toddler stage. This story is post-513. Brian and Justin moved to another city - either NYC or Chicago or Boston...I can't remember - but they make frequent trips back to Pittsburgh. The girls, especially one of them I think, really missed Britin. I remember Brian feeling guilty for uprooting Justin and the girls, and then not spending much time with them since he has to work so much. He also feels guilty because the girls miss Britin.

I can't really remember anything else. They might have had a nanny. It could have been Molly.

Anyway, if any of you know what this is, please let me know.

Thanks in advance!

EDIT: Found really fast. Link is in the comments, as well as other recs.

Lorelai.