Yep, she seems to wear her lack of domesticity as a badge of honour, and her "I'm so useless" and "you must be joking" attitude is looking a bit ridiculous in a middle aged woman in her 50's !! She should consider herself fortunate that she lives with someone who is able to cook, clean, garden, and do the ironing, because there may come a time when she has to 'discover' how to do these things herself.
I have come across so many women who, when left, completely flounder in all aspects of life including financial, and even driving a car, because 'they left all that' to someone else. But clearly she knows how to shop for fashion and beauty, so thats alright then.