This reading of "made" is suggested in Osborne's introduction to the Shakespearean Originals series of Twelfth Night:

"'For such as we are mad (or madde)', which is a simpler revision than moving a comma and changing 'if to 'of', makes just as much sense of the transformations of women's hearts as does the normal emendation. Moreover, the notion of madness plays through the comedy and surfaces especially at moments when the hold on identity falters...."

pg 24

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