" I was the Duff. And that was a good thing. Because anyone who didn't feel like the Duff must not have friends. Every girl feels unattractive sometimes. Why had it taken me so long to figure that out? Why had I been stressing over that dumb word for so long when it was so simple? I should be proud to be the Duff. Proud to have great friends who, in their minds, were my Duffs. "

― Kody Keplinger , The DUFF: Designated Ugly Fat Friend (Hamilton High, #1)