I can't remember much of the story. I don't even know if it is finished. I know it came out after the Avengers.
What I remember is something like this: Everyone goes their separate ways after Thor takes Loki back to Asgard. Tony is depressed / hurt by no one taking up his offer to move into the tower. It is very well written and very moving at this point.
Slowly the others start moving back in...Tony does think they don't want him or don't like him...of course, he is wrong, or misunderstood something but the hurt written in this part of the story is very good.
I can't remember much else which is very annoying to me...it is on AO3. PLEASE help me find it!