Depends on whether or not she's working at the time. If she's not working, she pretty much does everything except pay bills and any around the house maintenance. If she is working it becomes a matter of who it's easier for at the time...she mostly does the laundry though, since I don't seem to do it the "proper" way. I'm not quite sure how you can mess up laundry, but I think it has something to do with fabric softener (no, I don't shrink things).
In terms of cooking, she's a vegetarian since birth, I'm a well known slayer of furry animals, so we kinda just cook for ourselves. Occasionally she'll make me dinner when she's not working, she doesn't have problems cooking meat or anything, just doesn't enjoy eating it.
Cleaning...well that's something we both need to do more often I think. Unfortunately for me, my apartment is all tile floors, and the grout between the tile is a ***** to deal with. Spending hours with a toothbrush scrubbing between tiles is no fun, but unfortunately necessary. Oh, and she walks the dog like 90% of the time, but it was her dog afterall.