You aren't perfect. And, you don't expect others to be perfect. Mark McGwire missed the ball 22 times last year. He also didn't bat a 1000. It isn't the rejection that can hurt you, it's how you look at it.
Life is just a series of attempts.
Some of those attempts will work out, others won't. Learn from your failure. Thomas Edison told a reporter that each time he failed, he learned one more thing that didn't work. Maybe your approach was wrong. The timing might not have been right.