What is the reason why girls always laugh at a boy?

You may think too much. If they are laughing at you, you can stop being with them. This kind of thing is entirely on me. If you don't like it, you won't end it with them. There is nothing to be entangled in this kind of thing, and you don't have to be angry. That's who I am. How can I find someone who doesn't laugh at you to play with them?