Boyfriend and friend drama!!!!!!!!!!!!!! help plzz!!!!!!!?

okk so i have a boyfriend...we been 2gather 4 months about to be five...and he has a bestfriend name jessica...soo 2day i found out that she has been talking sh*t about mee...she said that "my boyfriend should break up w/ mee"..that im not worth it..when ppl told mee this i started crying..my friends told my boyfriend what she said...and he said that he was gonna talk to her....what should i doo plz help =/