Help me

My friend from US send sent it to me but my English is not good and I didn't understand what does she meant

Google translate work bad 

Can you explain what does it mean on in English-"i’d rather not being that he is mean to me all the time" "I'd rather him not being mean to me all the time"

To answer your question: It means that your friend prefers that he be not mean to her. Ideally, she wants him to be nice to her