Respond with something like this: you are beautiful no matter how you dress you are amazing at anything you do don't let anyone put you down because they said a lie about you remember you would rather be the beautiful person there talking abt than the ugly person taking now your worth you should ever let someone bring sadness into your life and if they do let them go friend are there to help you and do not bring you down you are enough and worth every part of happiness and love in the world