I have too but don't do it anymore. A big issue is no direct access to a head but in this scenario chef can pop up thru the hatch and right down into and thru my cabin to my ensuite head.
I certainly have no problem in sharing cabin with her but find that many women just feel more comfy having their own berth.

Capt. Bob
"If you reject the food, ignore the customs, fear the religion and avoid the people, you might better stay at home." -- James Michener