[novok]

Imagine if you could not make a single friend and nobody wanted to socially interact with you. If this was your condition, wouldn't you fly to a land where people would talk to you?

Or alternatively, imagine you are very very hungry, and a person who doesn't feel hunger doesn't understand why you would go to great lengths to eat food.

Some people also don't feel pain either and don't understand why people go to great lengths to avoid the feeling of pain.

You can make many metaphors for whatever things you desire and avoid on a feeling level and understand how non-asexuals feel.