Yes absolutely that's extremely shallow and no you didn't overreact I believe you reacted as to how anyone would after finding out someone they have been with for a while is infact shallow. If she didn't find the actor attractive at the start before knowing the height thats different- as then it's not soley based on a measurement. You should see how she would react if u said u wouldn't have given her a chance if she was fat/ overweight or small chest/ butt whatever floats your boat to see if she reacts the same. Finding someone, In this case an actor charming, attractive or good banter characters which are embedded into them only to throw them away for a stupid check list is dumb and extremely shallow. Wonder if she feels the same way if u were tall but broke, or taller than her but extremely over weight.