shes not gona notice a 1/2 an inch, thats pretty obvious, but what she WILL notice is your lack of self esteem, girls like guys who are sure of themselves (borderline cocky, very fine line).. girls dont want a guy who isnt confident, and second guessing himself over a goddam 1/2 inch... i still call BS on ur story though, i couldnt imagine a real person measuring all her boyfriends dicks...thats very strange..