>>712990350
They hate that people they don't like can have fun. You are thinking about them as if you were them, but that's not how they think. They do not operate on "live and let live" principle. Knowing that you can enjoy something causes them intense unease. As far as they are concerned you should suffer always and have nothing and no peace or pleasure. These actions are an expression of that and if you view them through this context instead of trying to "put yourself in their shoes" they will make perfect sense to you.