"Love" is just a hormonal response to certain environmental stimuli, generally caused by another human being. It's a slurry of chemicals in your brain, nothing more. But then, the world as we know it is just a slurry of chemicals in your brain. All perception is based on carbon-phosphorus molecules in an organ that fits inside your skull changing concentration and makeup.
So, this idea that "love" can go to hell, along with your ex, is silly. It only exists in your own mind, along with everything else you perceive the world to be. Eventually, you will find someone else who creates such stimuli again. All you can do is try and create the same hormonal response in her. (or him, to be open to statistical chance)
Anyway, rejection blows. And it happens far too often to me. I don't not ask girls out, based on
fear of rejection, but of
foresight of rejection. If I don't know if a girl will reject me or not, I go for it. If I can tell I'm less likely to succeed than fail, I just let it pass. Not worth my time and disappointment. That said, 99.9% of the times I've gone for it, I've been given some polite screw-you. The other .1% goes to the 2 girls I have dated. Both later admitted to being desperate.
So, the thing is, have confidence. Chicks dig guys with confidence. It's too damn bad dating 2 desperate chicks destroyed any shred I had