kewcumber grat advice with "why do you keep advising me about changing jobs when I have told you I'm happy with this one. Do you have a problme with my job?"
A question to her will flush out what her real issue is (if she has one) and will change the cycle of her telling you and not listening to the answer.
im going to nick that for other. areas in life if thats ok, i like it questioning the questioner good tip