When we were only kids, Sam Harris and I made a promise we'd marry each other if we were still single when we turned thirty. Well, my thirtieth birthday has come and gone and I'm still as single as ever.And as far as I know, so is Sam.But it's been ages since we've seen each other, and after what he did to me our senior year of college, I wouldn't put his ring on my finger even if he begged me to marry him. Never mind his devilish good looks. Or the...