Recruited everyone and have the chance to send party invites to as many squadmates and former squadmates as possible. You can go ahead and get the combat portion out of the way whenever you feel like it, but don't throw the party until everything else is done.
I have no idea what you're talking about, but... yeah! 
Great, I finally got to kill Udina. I've waited for this moment since ME1.
After that I check back on the Citadel, dance with Jack; kinda hooked Joker up with EDI; talked with Edi about her... ehm... structure.
Went back to the Normandy, checked mails.
Jack invited me to grab a drink at the Citadel. And a talk in his... bunk. So two mails from him.
Traynor invites me to a game night in my cabin.
That news reporter I always forget about wants an interview. In my cabin.
And what does my so-called LI do? Stands at the memorial wall and wants to talk about Kaidan.
Shepard really has got one hell of a love life.