Great question to mix things up here on the message board. Here's my take:
Necessities that make a home a home:
Pet(s) if that's your thing
Kid(s) if that's your thing
Attributes that should aid in your relationship: (in no particular order):
Double vanities in the bathroom. Sure, his and her baths are nice, but if you can't swing that, the double vanities at least keep toiletries out of each other's way. The cap off the toothpaste argument ends there.
An entertainment style kitchen... one that will provide years of enjoyment as you have friends and family over.
A private bedroom, nothing open or too close to the other rooms.
Outdoor living area.
A place for quiet privacy, such as a study or a sunroom - a place where one can cozy up with a book and not be bothered.
A cozy home makes for a happier place than a cold, drab home. Just because something looks cool in Dwell magazine doesn't mean it will be inviting when you live there.
Natural light. Not many couples can be happy living in a bat cave.
Close to work. No one comes home happy after sitting in traffic for two hours.
Close to restaurants, night life, shopping, and walkable. When you both get tired of hanging in the house you'll want the city's amenities at your doorstep.
That's about all I can think of right now. Good luck!!