I learned that valuable lesson way back in my early twenties. I once had a crazy, mouthwatering crush on this sweet woman, but I was too concerned with rejection to ask her out. A few years later, I bumped into her at a friend's party and found out that she used to have a thing for me also. Of course it was too late because by then she was Mrs. Ubach. I hope my misfortune will encourage more men to spring into action and let go of this ridiculous inhibition.
Most men fear rejection because it lowers their self-esteem.
It's not like they studied your personality and qualities before deciding to refuse you. They're having a bad day. The important thing to remember is that no one in this world can appeal to everyone's taste. Each woman has her own preferences. So if a man gets refused, it should not matter because all it means is that he does not fit the description of what that particular woman desires.