We've been together for 20 years. Every now and then my wife will drop a remark that she always envisioned herself being with a man with a certain look which is basically opposite to how I look. This is a physical attribute that cannot be changed. My reaction to these comments have always been to STFU. I've never gotten butthurt over them. Still, I'd be interested to know why after 20 years she still feels the need to bring this up. Is she shit testing me? Trying to invoke dread? What's a good response besides STFU?