Stop saying you want to die, stop pretending, nobody loves you, we already know. You're upset about how shallow people are, but seriously stop doing this to yourself is insidious and unnecessary.
If after that you say it was a joke, then what? You want the people around you to just worry and feel a little love and then you don't care what you've done. That's selfish, month you suck, I just can't say I like you because I don't, just that your behavior is sometimes so childish that you disgust me. If you really wanted to die, you'd have done it by now.