Been there done that. Being "home" takes on a very special meaning. You don't really want anything big... just to be with your family, friends, and dogs.
The hard part of it is being perfectly healthy and happy, knowing you are with the person you love and that your lives together are really good... and yet this strange clock is ticking and in a week they will be dead.
What would I do if I only had a week to live? I'd think about what I needed to do to make life easier for the person I was with after I was gone. Then I would do it. The biggest thing I'd probably do... write them a long letter and ask a very trusted friend to give it to them a year after I was gone.
You can't understand that letter unless you write it.