Its really not alarming. Its human nature. Here are a few ways to look at it:
-How many times does a guy on the street have to give his sales pitch before someone signs up? I bet the rejection rate is pretty similar.
-When I sold my last house, I had over 20 people come look at it. Three made similar offers, and I only accepted one of them because they brought more cash to the table and were less dependent on financing.
-When I walk into a public place I always scan the crowd for attractive women. Its very rare that there are more than 10% of the women there that I would even consider dating based on attractiveness. So on looks alone I have rejected 90% of the women there.
-Do you think a landlord accepts anyone that walks thru the door and wants to rent his property? For every 10 people that call, he won't even bother showing a property to half of those. Out of the remaining 5 there will be 2 or 3 suitable prospects that he thinks will pay rent on time, pass a credit check, and take care of his place. So 70-80% got rejected.
-According to google, a car salesman gets rejected by 70-80% of the people looking for cars.
The more you interact with the public, the more you understand rejection is actually pretty common.
ps. And this singles meet you went to you only asked one girl for her number and she declined. And you left mad after talking to the fat girl. You aren't even putting in the work it takes. I hope what I've shared puts things in perspective and you realize you are looking at this all wrong. Rejection is part of it.