I've done a lot of stupid stuff in my life. But sleeping with my best friend tops the list. Annabel and I have been close since college. When I left school to play pro football, she was there. While I collected Super Bowl rings and cars worth more than the house I grew up in-she was there. I always assumed we'd end up together. Everyone did. But by the time I retired from football, Bel was married. I thought I'd missed my shot at love. So I...