Ther is dis guy on myspace and said dat i was really ugly and i look like a hippo and thig like dat and?

i need help wat to say 2 him and if he is liying cuz he says dat pple in my school say i am ugly and and idk if he is just making fun of meh he doesnt even now me at all but he now wat school i go to but i need help wat to say to him .... i am so mad but sad at da time