Friend problems please help me 10 points for best answer?

ok my friend shawna is my only friend i hve and last week she wrote me a letter saying she hated me and that she didnt want to be my friend anymore so i was in cl and she was next to me and i started crying myeyes out i didnt want to ecause everyone was watching begged her to be my friend so she is now but i call her and she answers and she is grounded then the next day i call her and she is at anothers friends house se always lies to me and never has time totalk to me unless he wants to copy my notes or if she needs help with something but i dont know how to tell her i am notthat type i know how it feels to have someone and then the next day you lose them forever i just cantdo it but need get her away from me she is holdng me back and the other thing she is my only friend my entire family has a hard ime getting knew friends my mom only has one good friend and she only taks to her when she needs something am i just to nice to people and let them use me this has been going on for a year