For me, the most frustrating is the failure mode. With people, not being popular doesn’t mean you won’t meet or date, it means you will have a constant negative experience. You may date a nice girl (boy in my case) but the relationship will be taxing, as in you’ll have to work more for the relationship than the other person.

It is entirely justified and reasonable, but if you didn’t notice the gap, you will end up believing people have a bad character.