My friend really pisses me off?

my friend pisses me off.. we usually have an okay relationship but when i dont want to do something she will go insane.. she'll be like your a lazy fking blabla be fat and not meet hotties or something and it REALLY bugs me.. shes so insensitive and very blunt id NEVER say these things to her if she didnt want to do something.. i dont like forcing people and she tries doing it to me.. if i talk to her she will be like omg grow up blabla ur so sensitive.. what should i do?