When was the last time when you think that you are the best guy for this new girl that you have just met a few weeks ago and then, after all the sweet texting and evening phone calls, she said "No" and ended up everything?
I guess you are not just the only one who have experienced this kind of heart-breaking situation. Every guy is facing these I-am-sorry-but-no moments after proposing courtship to a girl. You might feel you're temporarily half alive for a moment, for days and even for weeks. Staggeringly painful, isn't it?
Now, you might want to assess yourself again. What's wrong with your techniques? Are your words persuasive enough or more likely you are bragging yourself so high that your girl could no longer reach you? Are you too fast that you are already becoming too pushy to give you her "yes?"