"You're too [young / old / short / tall / serious / laid-back] for me."

What she's actually testing

Whether you'll defend attributes you can't change — which is both pointless and revealing. The frame is: she holds the standard, you argue against it. Arguing against it confirms the frame, even if you win the argument.

Why it works on most men

Physical or demographic disqualifications are calibrated to trigger self-defense. The male brain wants to correct the record — to say 'actually, [attribute] is fine because...' But the problem isn't the attribute. The problem is accepting that she holds the evaluation authority.

The response framework

The obvious: 'Maybe.' Continue without adjusting. The disruptive: the man who genuinely doesn't place himself in the category of 'men seeking her approval' doesn't hear a disqualification — he hears an opinion. Opinions don't require defense. The man who isn't asking to be her type in the first place has nothing to prove and nothing to adjust.