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To be fully invested in a boyfriend - personal time, money, and reputation resulting in less than or zero satisfactory returned value on his part. When this happens the girl must remove her rose tinted glasses to make a good business decision soley on the facts presented.

Zero return of his personal time, money, plus add harm to said girl's reputation = Zero Boyfriend ROI = license for her to upgrade to a better suitor, and drop him without notice or fair warning.
Zero Boyfriend ROI
by smartbusinesswoman June 17, 2010
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