Plays Well with Others (How to Date)Dating lessons from my football playing best friend? Sign me up! At the glittery break up party she throws for herself, Rachel Dumont envisions lifting a glass to celebrate being free and single again. What she actually does: Drink too much champagne and blurt out to her best guy friend that she'd really like to get back on the horse. She doesn't expect Carter Hendrix's answer to be to volunteer himself. With his sinful brown eyes and too good to be