How Can I Get Her To Stop Talkin To Me?

we used to be friends untill tonight. It all strted after school today. My friend Jessica said B**** whenevr you get this txt something back. So i texted back and was like why should i txt back after you called me a *****. {Jessica} you r a b**** because you never talk to me at shcool and ignore me {me} i talked to you today {jessica} no u didnt {me} W/e i did to {jessica} you are a retard and you r so stupid {me} watever u no i am way smarter than you{jessica} do you know who thi is {me} yea its sam {jessica} no it isnt {me} i am not a retard i know sam txtxs way slower than jessica {jessica} sam isnt at my house {me} yea she is {jessica} ok so she is {me} i gotta go {jessica} w/e then later this evening {jessica} w/e you r fat an d ugly and stupid {me} i am smarter than u arent i {jessica} you r gay cause u like (kid) {me} no i dont like him not gay if anyone is gay for liking him it would be u cause u went out wit him {jessica} watevr bi*** {me} at least i am not a C***.