Don't know, don't know, I've been in love before but I've not been in a serious relationship [oh, lets just be honest] in any relationship before this. And I know she was badly hurt after being left by her ex, because he fell in love with his assistant after 7 years with my current (now and forever) girlfriend (lucky me), but I swept her off her feet, and she landed in my arms (gosh I'm getting lyrical) and she had sworn not to do the mistake of commiting to any realtionship ever again, but here we are 18 months later (we just celebrated one and a half years together) and I believe we love each other more for every day that passes.
To the point, I don't think I could commit myself to anyone after being dumped by this particular lady. It's too serious, I wouldn't trust anyone anymore. But as Ozz says, mother nature would probably make the hormones stir again at some point, and then there would be the sexual attraction for somebody new again and there are actually relationships that last thought they start out with sex.
It's probably simply a question of attitude one might think than one wil never date again if one breaks up with a current partner, but feeling will pass, if not, then it's sad. It's all about being emotionally available and though most think they won't be that ever again they will be.