My ex is drivin me crazy !!!!?

she broke up with me . an said she want to b friends with benefits .i said no .. she txt me every 2and week an asked if i still like her . i would awnser her q an shed stop txtn i said yes 2 an no 3 times an she stops txtin . shes 14 im 17 . if i refuse to awnser she get mad . i ask her y she wants to know . she says just awnser . it does not matter if its yes or no .. what the hell is her prob ?? i need help !! thanks