When James Douglas Barron's girlfriend wanted to get married, he was, well, afraid. What threw this otherwise brave man into a fit if fear? Simple. He thought long-term commitment would ruin their fun relationship. Now that they aremarried (and happy), James thinks his prenuptial terror couldn't have been more amiss. In his book, She Wants a Ring -- and I Don't Wanna Change a Thing he offers advice to other commitment-phobes and along the way gives women a glimpse into the male psyche. "For a guy, the decision to get married is a series of educated guesses," says Barron. "For...