i think it is like the others say, they want you to do beter. even tho its f**ng irratating. you can try so speak in there language like adults.and if that dont work you can just stop talking to them. talk to everybody els but dont answer there questions or that stuff. then you show them that you are serius. i can promes you that after 2-3 maby 4 days without talking to them they will do anything to make you talk to them again XD ;P (or just take you to a school counselor -.-´)
i dont really know what ells to say then good luck. hope this helps :D