What was it that disappointed you about getting hitched?
What did you hope for?
What would you like to see?
I'LL START!

Recently completed the Vampire radiant quest to turn your spouse. It would be great to now have the option to teach her how to feed, complete with some dialog options. Take her as a follower, sneak into a house, point her at a sleeping subject and direct her to feed. Maybe have a random event during it where the dawnguard catch you afterward and you're forced to fight with your spouse or flee.
It would be great now to have her make me a "homemade blood pie" for a cooked meal.
Also, it would be neat if she randomly told you that she learned a new recipie, and so now you can learn to make blood and human flesh based recipes. If you have the kitchen then you can also learn some new blood/flesh based baked goods.
Something like that

You don't have to take the Vampire angle on it. Throw out some thoughts and ideas and lets have some fun!
Weeee!!!
