Mikey moved away. Came back to expect everything to be the same.

[moonflowerkc.livejournal.com]

This is a fic I thought was recently updated on Midnight Whispers so I thought it will be easy to find, but I was wrong (unless I'm blind or nuts).

In this fic, Michael left with Dr. David and cut off the gang for a year. Now he's moving back and nobody except Deb is excited. Mikey expected everything to the same but everybody has moved on and angry with him for cutting them out of their lives. He went to Brian's loft only to find a stranger living there. Brian changed is phone number and Mikey snooped in Deb's address book to find it but got caught by Deb who yelled at him. It's Brian/Justin, but I mostly remember the Mikey parts.

Thanks for any help.

Found! Purpose by Britinified. Link in comments.