Am I too jealous and over reacting?

ok so my bf has these preppy bitchy friends ( no offense to preps i just hate these girls that r preps and mostly all preps but some of them r ok ) and they obviously dont like me so everytime i turn around they r hugging him tryin to c his abs totally flirting wit him and i cant stand it so i been fightin wit em he told me to stop so i did and they kept flirting and starting rummors so since i cant do nothin i got my girls goin after em in a few days cause where i come from that **** dont fly and u get jumped, shoot, or stabbed for doin that ****. but m i being too jealous and over reacting to all this?