Didn't read all the responses. My brother and his wife had this issue. They made a list of all the household chores, how long they take to complete, and assigned them out according to how much time they take and who has the most time. He was working full time and on call, she was working barely even part-time and was a new mother.

Having the chore responsibilities split up and agreed upon helped meet off any arguments. I think you could sit down with her and do the same. Doesn't mean you get out of doing chores, just means she may do the more time consuming chores, while it's your job to do some of the quicker ones, like emptying out the dishwasher each day, while she does the laundry and vaccuuming, or whatever.

Good luck,
seesaw