Honestly, largely it's relational for me. Not having someone to always hold, kiss, touch, be with, speak to, listen to, love, be loved by...
I know Christ must be our #1, but it's often different and difficult to hear God, feel God, be there for God. I think in the same vein as the weakness RKChick mentioned, you just want someone you can go through life with, and even in seeking God. Good, bad, ugly...you're together as one. That's the hardest thing for me. I've got God, and though He truly is more than enough, even Adam, Abraham, David, and many of the other pillars of the faith got lonely, loved women, took wives, ext. I'm in the same boat, but God's Will be done. I'll live single should He ask me.
When it comes to chores, I'm not necessarily good at them, but I don't really mind doing what I must.