Why does my ex-friend keep callin me and hangin up???????

Last year i got into a huge fist fight with one of my close friends but we had stopped talkin a long time b4 the big fight. and since then i havent seen her or talked to her cuz the day after the fight she switched schools. And like every other month she calls and hungs up..........wat the hell is wrong with her??? my mom says maybe cuz she misses me or wants to be my friend again........i dout that tho. cuz to be honest i started the whole fight and if i was her i wouldnt want nothin to do with me..................................................................................................................................so wat do u think she wants??