I'd want one that says, "pain in the ass to live with. Full of
  quirks. Needs PLENTY of space to do projects and hates being
  smothered. Might cuddle now and again, I dunno. Like to pretend
  to be a loving couple in public but at home wants to be left
  alone unless necessary. Won't bother you either but I'll be
  civil and pleasant and nice when I do and I expect that out of
  you as well. Likes to talk about whatever I'm obsessed with at
  the time and will gladly listen to yours too but I might call
  you out on bullshit as long as you call me out on mine sometimes
  - just not every time, ok?" Some thing like that. Me.